External water resources are estimated at 65.2 The country has about 20 islands. Precipitation is defined as any kind of water that falls from clouds as a liquid or a solid. 0000005846 00000 n These months yield 77â 94% of the total annual rainfall for the southern and northern margins of the region. Map showing Awka Region, Nigeria. In addition to the NDVI data, total monthly rainfall data for Nigeria for the same period (1981 – 2009) were also used. In each case, the article includes the longest and most comprehensive precipitation gauge series ever published. 1992-1996 respectively. To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Free phone within New Zealand: 0800 RING NIWA (0800 746 464) Contact details Nigeria is affected by the Tropical Continental and Tropical Maritime air masses. Rain forests are characterized by high rainfall, with definitions setting minimum normal annual rainfall between 1,750 and 2,000 mm (69 and 79 in). Rainfall/ Precipitation in Lagos, Nigeria Lagos is awarded on average 1506.6 mm (59.3 in) of rainfall per year, or 125.6 mm (4.9 in) per month. Both rainfall and snowfall are important sources of freshwater in the earth’s land-surface system. (1936–1965) rainfall record of West Africa examined annual total series for linear trends and concluded that the search for periodicities in West African rainfall is a fruitless effort. Monthly Rainfall distribution in southwest Nigeria (2001-2014) production and at the same time has the highest risk for flooding and environmental degradation. Asokoro A savanna climate, with marked wet and dry seasons, prevails in the north and west, while a steppe climate with little precipitation is found in the far north. This paper examined rainfall seasonality in the Niger Delta, Nigeria, using both monthly and annual rainfall data from 1931 to 1997. Coastal plains are found in both the southwest and the southeast. Maize yield data was obtained from Taraba State Agricultural Development Programme for the period 1985–2014. On average, January is the driest month. Climate and Average Weather in Niger. In the east annual rainfall is only 2 cm (0.79 inches). Given this climatological cycle and the size of the country, there is a considerable range in total annual rainfall across Nigeria, both from south to north and, in some regions, from east to west. Total Nigeria Plc is a Marketing and Services subsidiary of Total; a multinational energy company operating in more than 130 countries and committed to providing sustainable products and services for its customers. 0000004436 00000 n The rain continues in most part of the country till even October and … High rain totals are represented in dark blue, while small rainfall totals are shown in white. TRMM measures rainfall in the tropics. Nigeria consumes 428,000 barrels per day (B/d) of oil as of the year 2016.; Nigeria ranks 37th in the world for oil consumption, accounting for about 0.4% of the world's total consumption of 97,103,871 barrels per day. The temperature in April averages 28.5 °C | 83.3 °F. Rainfall in the coastal belt of the Niger Delta is heavy due to the closeness of the Delta region to the equator. The driest month is December, with 1 mm | 0.0 inch of rain. and the low dependability of rainfall. Rural land area where elevation is below 5 meters (% of total land area) Urban land area where elevation is below 5 meters (% of total land area) Land area (sq. DATA Daily rainfall data collected at 25 locations in northern Nigeria for 1931–96 were analyzed. Met Éireann, the Irish National Meteorological Service, is the leading provider of weather information and related services for Ireland. Inland, it decreases to around 130 cm (50 inch) over most of central Nigeria and only 50 cm (20 inch) in the extreme north. 0000007742 00000 n According to Adefolalu (1986), locations north of 8°N in the country received over 90% of the total annual rainfall in April–October while for southern stations the proportion of wet season rainfall was 84–88% of the annual total. Port Harcourt experiences extreme seasonal variation in monthly rainfall. %PDF-1.4 %���� The average amount of annual precipitation is: 999.9 mm (39.37 in) All time series cover at least a century and most cover roughly one and one-half centuries or more. 0000001672 00000 n Abstract: Rainfall is very important for the economic growth and development of any nation; hence there is dire need to study the monthly and annual trends. This paper examined rainfall seasonality in the Niger Delta, Nigeria, using both monthly and annual rainfall data from 1931 to 1997. Aso A band of heavy rain moves north and south of the Equator seasonally. Akure, Ondo State, Nigeria. April is the warmest month of the year. Annual rainfall amount: The annual rainfall total was calculated for the study area from the monthly rainfall amount. 0000009303 00000 n 1.5 HYPOTHESIS i. 0000060255 00000 n 0000002501 00000 n A band of heavy rain moves north and south of the Equator seasonally. The total annual discharge leaving Burkina Faso is estimated at about 1.4 km 3. It is the condensation of water vapour into clouds which become heavily laden with water that leads to rainfall events. The wettest month in Nigeria is June in southern and the wettest area is the east coast, parts of which receive over 4000 mm rainfall annually. However, south Assam is the only sub-division where rainfall data show a negative trend. Ankuru The country is covered by three major types of vegetation which include forests, savannahs and montane land. positive trend. This area is approximately 133% of the area of Texas. To determine the annual variation in rainfall variation from 1982 to 2011. Mean annual rainfall over the whole country is estimated at 1 150 mm. The best month to swim in the sea is in March when the average sea temperature is 29°C (84°F). -�EqbI�ׂ 䧅,�f�[�&�q�E�~t}KG4��ǹ�r����];����ׇ0�S�5c������m�-Ӵ���i�__�!��͇�u A tropical savanna is a grassland biome located in semi-arid to semi-humid climate regions of subtropical and tropical latitudes, with rainfall between 750 and 1,270 mm (30 and 50 in) a year. Some characteristics of observed daily rainfall in the area are shown in Figures 2 and 3, based on data from the Nigeria Meteorological Office, Lagos. x�b```b``qg`e`�1e`@ 6 da�����ym�T�X�z_��}�f���L��L�2�����L]8-2u*X�Ѿ �K�ȑ���j��m˛$��68�r�diviMʌꓐ�;�M�+Ik�� ;O����]ߥ�"6U���idgQ����5���s��[�,�N���`I��p8i����tVX�HҊe��j+�,>;� ��u'we���m�7��hᙵd��A��g�^�.ܶ�8�n��zj��D��V�U3:y���~�s���SPt:�P�ڮ�j2��2rL8��b�֒E�Y ye,J���hWZ�6u��Ɲ7:y�Z���Vy�+�-nc{��غhF�*�� �,����x�T'%%��H�1)��t� ��(b7@Ó��4��I����%IEZZ���D5� &%�44��T�=�`]��̇�6�nP`�j�m�� �=A�Ò��@+Cm�/�&� N��W�7��1h��J1Ҽ!Ƭ�S���a���e@G1V0�`?�l�� �������!�e��&s��[�#ņ����@� � �~� endstream endobj 62 0 obj <>/Metadata 59 0 R/Pages 56 0 R/Type/Catalog>> endobj 63 0 obj <>/ColorSpace<>/Font<>/ProcSet[/PDF/Text/ImageC]/ExtGState<>>>/Type/Page>> endobj 64 0 obj <> endobj 65 0 obj <> endobj 66 0 obj <>stream Moving north from Ibadan, mean annual rainfall in the west is in the range of 1,200 to 1,300 millimeters. High-latitude regions, where TRMM does not record rainfall, are gray. H�\��j�0E�~ Average rainfall is the long-term average in depth (over space and time) of annual precipitation in the country. km) Download. Wiley Online Library N. J. Bello, An investigation of the characteristics of the onset and cessation of the rains in Nigeria, Theoretical and Applied Climatology, 10.1007/BF00865159, 54 , 3-4, (161-173), (1996). The intense heat of the Saharan zone often causes the little rainfall to evaporate before it hits the ground. Nigeria (Federal Republic of Nigeria (FRN), 2003). 0000010891 00000 n The report includes country-specific three-year forecasts for major macroeconomic indicators, including commodity and financial markets. The data was collected on 9 synoptic stations in the region. Nigeria's tropical climate makes it an all-year-round tourist destination, with temperatures staying consistently hot. Nigeria - Nigeria - Climate: Nigeria has a tropical climate with variable rainy and dry seasons, depending on location. The wettest month is June with an average of 316mm of rain. On average there are 121 days per year with more than 0.1 mm (0.004 in) of rainfall (precipitation) or 10.1 days with a quantity of rain, sleet, snow etc. Each place has a total for the amount of precipitation it usually receives in a year along with information on the number of days with wet weather. mean monthly humidity is about 65%. Year Rainfall Year Rainfall (mm) Year Rainfall 1975 1322 1988 2006 2001 1551 1976 2021 1989 1790 2002 1778 1977 1781 1990 2012 2003 1882 1978 1790 1991 2080 2004 2084 1979 1832 1992 1810 2005 1863 1980 1679 1993 1605 2006 2016 0000004265 00000 n The ?rainy season? Here you can query, map, compare, chart and summarize key climate-related information. Annual internally produced resources amount to 221 km3, made up of 214 km3 surface water and 87 km3 groundwater, while 80 km3 of the latter is assumed to be overlap between surface water and groundwater. Figures 1b, c and d smoothened with a 5-year moving average show the graphical presentation of the annual rainfall The data was retrieved from the archives of the Nigerian Meteorological Agency in Lagos. (2010); they observed that rainfall trend in Nigeria is decreasing on annual basis. With the contribution of eight consecutive high monthly temperature records set from January to August, and the remainder of the months ranking among their five warmest, 2016 became the warmest year in NOAA's 137-year series. The average amount of annual precipitation is: 999.9 mm (39.37 in) 0000012496 00000 n About 1389 mm | 54.7 inch of precipitation falls annually. 0000005236 00000 n The rainfall data was used in calculating the mean monthly rainfall, annual rainfall, the onset, cessation and length of rainy season. This represents a 38% increase from 2003 when the population of Nigeria was approximately 126.30M. The data was collected on 9 synoptic stations in the region. The rainfall maps show total monthly rainfall in millimeters as recorded by NASA’s Tropical Rainfall Measuring Mission (TRMM) satellite, which is a joint mission between NASA and the Japanese Space Agency. The mean annual rainfall along the coast in the south- east is 4000mm while it is only 500mm in the north- east. 0000000996 00000 n H�\��j�@ཞb��"��ܹ7a�O^�} Y��Z����w�NH����X��8��w���k'���'wi�f���}��;�k�e��5m=}|��׷j��t��q����]��,]�#}y�Ƈ{�4�9>g����c�]�ӯ�����a�o���­׮���C_��ku�.�o{96��vz��{�]��1DW̟���}�CUDZ�1+�v�!��Y���7�m�K�����ŋEzKY�Y����yżB�1���{�7�7�s”�]]~ɼD.�d��������i�yc6d:=��N��0o���۔��Ah��Ah��Ah��Ah��Ah�� �P��pC��� km) Urban land area (sq. April to October is the rainy season in Nigeria. 0000031111 00000 n 0000003410 00000 n annual rainfall varies from 2,000mm in the southern areas to 1,150mm in the northern areas. Nigeria is a country located in Africa south of the Sahara.As of 2012 Nigeria had a total population of approximately 173.89M people. Mabushipe Rain is the liquid form of water falling to the land surface where as Snow is the solid form of water. Yola. High rain totals are represented in dark blue, while small rainfall totals are shown in white. About 70% of Nigeria's crude oil and gas production is from the area. Moving north from Ibadan, mean annual rainfall in the west is in the range of 1,200 to 1,300 millimeters. The average global temperature across land and ocean surface areas for 2016 was 0.94°C (1.69°F) above the 20thcentury average of 13.9°C (57.0°F), surpassing the previous record warm… Annual rainfall of Awka Region (1975-2010). Climate Change. Rainfall in Niger Delta. Global Economic Prospects. The rainy season in the northern part of Nigeria last for only three to four months (June–September). The yearly rainfall data for some sub-divisions, namely Punjab, Himachal Pradesh and Assam follow and increasing trend. The northern part of Nigeria has the lowest amount of rainfall in a year sometimes as little as 120 to 130 rainy days in Kano and even lesser by 10 to 20 days in Katsina and Sokoto. Annual rainfall varies from as low as 500 mm per year in the Sahel savanna zone to about 3000 mm in the Mangrove Swamp zone. Kubwa Histogram, trendline and time series were the statistical tools employed to analyse the data. 3. 0000008299 00000 n 0000021291 00000 n This is the result of annual total rainfall occurrence and distribution, which is more predominant in the south than in the north. It is drained by River Kaduna. Most of the precipitation here falls in September, averaging 284 mm | 11.2 inch. 61 0 obj <> endobj xref 61 35 0000000016 00000 n According to Adefolalu (1986), locations north of 8°N in the country received over 90% of the total annual rainfall in April–October while for southern stations the proportion of wet season rainfall was 84–88% of the annual total. To determine the biannual variation in rainfall from 1982 to 2011. The tables below give yearly averages for rainfall plus snowfall at cities, towns and parks in Maine. North of Kaduna, through the northern Guinea savanna and then the Sudan savanna zones, the total rainfall and the length of the rainy season decline steadily. Remarkably, this is the third consecutive year a new global annual temperature record has been set. Water resources in Lower Kaduna catchment are limited and with deteriorating quality due to … Nigeria has a varied landscape. The most obvious pattern in the total rainfall maps is seasonal change. According to Köppen and Geiger, this climate is classified as Aw. However, periodicities have been detected in the study of rainfall periodicities in West Africa and Nigeria, in … Rainfall/ Precipitation in Lagos, Nigeria Lagos is awarded on average 1506.6 mm (59.3 in) of rainfall per year, or 125.6 mm (4.9 in) per month. And October–November seasons are also examined for equatorial sectors extreme seasonal variation in rainfall! Annual temperature is 25.7 °C | 40.3 °F northern part of Nigeria was approximately 126.30M maritime air masses next years... Clouds which become heavily laden with water that falls from clouds as a or. 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