Effium climate — normals and trends

Q: What is the climate of Effium?

Effium has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 1,291 mm of precipitation per year.

Q: What is the hottest day ever recorded in Effium?

The hottest day measured in Effium between 1940 and 2025 was 4 March 2025, reaching 41.8 °C.

Q: What is the coldest day in Effium?

The coldest day measured in Effium between 1940 and 2025 was 29 December 1975, at 15.9 °C.

Q: Does it snow in Effium?

Almost never: Effium sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Effium warmed?

Yes: Effium warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Effium?

The wettest day measured in Effium between 1940 and 2025 was 22 June 2020, with 159 mm of rain in 24 hours.

Q: What was the windiest day in Effium?

The windiest day measured in Effium between 1940 and 2025 was 12 April 2006, with winds reaching 24.4 km/h.

Q: What is the warmest month in Effium?

The warmest month in Effium is March (29.5 °C on average); the coldest is July (25.2 °C).

Q: How much does it rain in Effium?

Effium receives on average 1,291 mm of precipitation per year, spread over about 175 rainy days.

Q: Is it sunny in Effium?

Effium gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.

Effium (Nigeria) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.1 °C and it receives 1,291 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is March (29.5 °C on average) and the coldest is July (25.2 °C). Rainfall peaks in September.

Effium averages 0 frost days, 286 hot days (≥ 30 °C) and 175 rainy days per year.

Effium has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.

The hottest day of the period reached 41.8 °C (on 4 March 2025) and the coldest 15.9 °C (on 29 December 1975).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

EffiumEbonyi State

coords: 6.63°, 8.06°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthMarchColdest monthJulyWettest monthSeptemberDriest monthJanuary

Mean daily temperature

27.1°C

Average daily high

32.4°C

Average daily low

23.4°C

Annual rainfall

1,291mm

Sunshine / day

9.2h

Mean relative humidity

72%

Average peak wind

11.5km/h

Seasonal range

4.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

286 d/yr

Rainy days (≥ 1 mm)

175 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.5 °C

Average feels-like low

26.8 °C

Average peak gust

26.5 km/h

Tropical nights (≥ 20 °C)

356 d/yr

Solar radiation

17.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.72 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

41.8 °C

4 March 2025

Coldest day

15.9 °C

29 December 1975

Wettest day

159 mm

22 June 2020

Windiest day

24.4 km/h

12 April 2006

Strongest gust

52.9 km/h

12 April 2006

Hottest feels-like

46.2 °C

3 March 2025

Coldest feels-like

13.4 °C

8 January 1957

Sunniest day

12.2 h

20 July 1942

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	41.8 °C4 March 2025	18.8 °C13 January 2025	28.5 °C	1,300 mm	308
2024	40.8 °C28 February 2024	17.1 °C16 January 2024	28.5 °C	1,154 mm	335
2023	39.5 °C1 March 2023	18.1 °C27 December 2023	28.2 °C	1,234 mm	327
2022	38.6 °C25 February 2022	18.5 °C23 January 2022	27.7 °C	1,214 mm	302
2021	39.7 °C7 March 2021	19.2 °C25 January 2021	28.1 °C	956 mm	324
2020	39.7 °C29 February 2020	17.8 °C26 January 2020	27.9 °C	1,538 mm	316
2019	38.3 °C20 February 2019	17.5 °C24 December 2019	27.7 °C	1,591 mm	315
2018	40.1 °C6 February 2018	17.5 °C6 January 2018	27.6 °C	1,569 mm	311
2017	40.5 °C24 February 2017	18.9 °C10 January 2017	28.0 °C	1,265 mm	324
2016	40.7 °C21 February 2016	19.9 °C29 December 2016	27.9 °C	1,540 mm	325
2015	38.6 °C15 March 2015	19.2 °C3 January 2015	27.7 °C	1,297 mm	311
2014	39.9 °C24 February 2014	17.1 °C7 January 2014	27.5 °C	1,612 mm	308
2013	39.2 °C3 March 2013	18.1 °C17 December 2013	27.6 °C	1,317 mm	303
2012	40.1 °C28 March 2012	17.3 °C17 January 2012	27.5 °C	1,502 mm	293
2011	39.5 °C29 March 2011	16.1 °C1 December 2011	27.6 °C	1,250 mm	309
2010	41.4 °C4 April 2010	16.5 °C11 December 2010	28.2 °C	1,269 mm	323
2009	39.9 °C6 March 2009	18.0 °C7 December 2009	27.8 °C	1,297 mm	318
2008	38.2 °C6 March 2008	18.3 °C25 January 2008	27.3 °C	1,385 mm	297
2007	39.3 °C18 February 2007	18.0 °C22 December 2007	27.4 °C	1,154 mm	285
2006	40.1 °C7 April 2006	19.5 °C30 December 2006	27.9 °C	1,278 mm	301
2005	40.5 °C19 February 2005	17.8 °C14 January 2005	27.8 °C	1,104 mm	305
2004	38.7 °C11 February 2004	19.5 °C30 November 2004	27.5 °C	1,204 mm	308
2003	38.4 °C7 February 2003	18.8 °C8 December 2003	27.5 °C	1,147 mm	301
2002	39.1 °C23 February 2002	18.5 °C24 January 2002	27.1 °C	1,348 mm	292
2001	38.1 °C22 February 2001	17.3 °C10 January 2001	27.3 °C	1,086 mm	275
2000	38.9 °C6 March 2000	17.0 °C7 December 2000	27.2 °C	1,468 mm	285
1999	39.2 °C13 February 1999	17.7 °C14 December 1999	27.3 °C	1,631 mm	287
1998	39.5 °C5 February 1998	19.8 °C18 December 1998	28.0 °C	1,217 mm	304
1997	38.7 °C10 March 1997	19.6 °C14 December 1997	27.1 °C	1,372 mm	290
1996	38.2 °C25 February 1996	18.7 °C8 January 1996	27.1 °C	1,543 mm	279
1995	38.2 °C3 March 1995	19.3 °C18 January 1995	27.2 °C	1,640 mm	288
1994	38.7 °C18 March 1994	19.4 °C30 December 1994	27.1 °C	1,562 mm	283
1993	36.9 °C5 April 1993	17.2 °C17 January 1993	27.0 °C	1,383 mm	309
1992	38.5 °C8 March 1992	19.2 °C26 December 1992	26.7 °C	1,372 mm	276
1991	37.3 °C8 March 1991	19.6 °C29 December 1991	26.9 °C	1,481 mm	274
1990	40.7 °C29 March 1990	20.7 °C25 February 1990	27.3 °C	1,421 mm	294
1989	38.7 °C14 March 1989	17.9 °C16 January 1989	27.0 °C	1,365 mm	294
1988	38.7 °C21 February 1988	19.5 °C30 December 1988	27.3 °C	1,410 mm	283
1987	38.0 °C2 March 1987	18.6 °C7 January 1987	27.7 °C	1,200 mm	320
1986	39.3 °C2 February 1986	17.8 °C6 December 1986	27.0 °C	1,319 mm	291
1985	38.5 °C7 March 1985	19.6 °C5 December 1985	26.7 °C	1,655 mm	276
1984	38.6 °C27 February 1984	17.0 °C18 December 1984	27.0 °C	1,350 mm	308
1983	40.2 °C25 March 1983	18.9 °C27 December 1983	27.4 °C	1,080 mm	290
1982	38.0 °C10 March 1982	19.2 °C30 December 1982	26.9 °C	1,295 mm	288
1981	37.9 °C16 March 1981	17.3 °C30 November 1981	26.8 °C	1,415 mm	286
1980	37.9 °C10 February 1980	17.6 °C17 December 1980	26.8 °C	1,654 mm	283
1979	36.8 °C17 February 1979	16.9 °C11 December 1979	26.9 °C	1,517 mm	301
1978	38.1 °C21 February 1978	18.1 °C13 January 1978	26.7 °C	1,403 mm	290
1977	38.3 °C15 March 1977	18.4 °C8 February 1977	27.2 °C	1,108 mm	302
1976	35.7 °C28 January 1976	16.9 °C3 January 1976	26.2 °C	1,357 mm	257
1975	36.6 °C6 March 1975	15.9 °C29 December 1975	26.3 °C	1,396 mm	265
1974	37.4 °C7 March 1974	16.9 °C14 January 1974	26.6 °C	1,367 mm	268
1973	39.3 °C12 March 1973	19.2 °C28 November 1973	27.3 °C	1,424 mm	319
1972	37.2 °C8 February 1972	18.9 °C14 February 1972	27.0 °C	1,306 mm	306
1971	39.0 °C18 February 1971	17.6 °C17 December 1971	26.7 °C	1,407 mm	292
1970	39.5 °C17 February 1970	18.6 °C29 November 1970	27.1 °C	1,402 mm	293
1969	38.4 °C14 February 1969	18.1 °C9 January 1969	26.9 °C	1,461 mm	270
1968	37.8 °C25 February 1968	17.8 °C20 January 1968	26.7 °C	1,457 mm	285
1967	38.5 °C24 February 1967	18.4 °C2 January 1967	26.7 °C	1,378 mm	271
1966	39.0 °C19 March 1966	17.7 °C25 January 1966	27.1 °C	1,058 mm	307
1965	36.0 °C31 January 1965	18.0 °C8 December 1965	26.9 °C	994 mm	295
1964	38.4 °C27 February 1964	18.9 °C17 January 1964	27.3 °C	615 mm	287
1963	38.4 °C14 March 1963	17.9 °C2 January 1963	27.1 °C	1,103 mm	312
1962	38.2 °C3 March 1962	17.4 °C4 January 1962	26.5 °C	1,196 mm	252
1961	37.7 °C8 March 1961	17.1 °C27 December 1961	26.6 °C	971 mm	277
1960	37.6 °C25 February 1960	19.3 °C2 January 1960	26.9 °C	1,155 mm	279
1959	38.5 °C9 March 1959	17.8 °C29 December 1959	27.0 °C	1,056 mm	282
1958	37.1 °C12 February 1958	18.6 °C8 January 1958	26.8 °C	1,044 mm	246
1957	36.6 °C16 March 1957	18.2 °C13 January 1957	26.3 °C	1,378 mm	235
1956	37.4 °C14 February 1956	18.1 °C1 January 1956	26.1 °C	1,333 mm	235
1955	36.4 °C18 February 1955	18.1 °C30 December 1955	26.4 °C	1,473 mm	231
1954	36.3 °C4 March 1954	18.1 °C9 December 1954	26.3 °C	1,101 mm	241
1953	36.9 °C6 March 1953	18.0 °C15 December 1953	26.6 °C	1,162 mm	247
1952	37.5 °C3 March 1952	18.8 °C5 January 1952	26.6 °C	1,366 mm	270
1951	37.4 °C3 March 1951	17.5 °C6 December 1951	26.4 °C	1,381 mm	260
1950	36.9 °C7 March 1950	19.1 °C1 September 1950	26.3 °C	965 mm	260
1949	38.2 °C16 February 1949	18.0 °C10 December 1949	26.9 °C	873 mm	288
1948	37.6 °C21 February 1948	18.0 °C22 December 1948	26.4 °C	1,365 mm	247
1947	37.7 °C21 February 1947	18.7 °C17 January 1947	26.7 °C	1,316 mm	240
1946	38.8 °C23 February 1946	18.1 °C19 January 1946	26.6 °C	1,107 mm	226
1945	38.8 °C6 April 1945	17.7 °C22 December 1945	26.7 °C	1,284 mm	262
1944	37.6 °C15 February 1944	17.9 °C14 December 1944	26.4 °C	1,285 mm	251
1943	36.8 °C1 March 1943	18.6 °C31 January 1943	26.3 °C	620 mm	264
1942	37.4 °C17 March 1942	20.3 °C17 July 1942	26.5 °C	981 mm	248
1941	37.7 °C9 March 1941	17.1 °C27 December 1941	26.6 °C	1,144 mm	265
1940	36.5 °C22 February 1940	19.8 °C31 December 1940	26.4 °C	1,245 mm	254

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

34.0 °C

+1.6 °C

Hot days (≥ 30 °C)

308 d/yr

+22

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1300 mm

+9 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	36.1 °C	+1.3 °C	3 mm	-2 mm
Feb	38.0 °C	+2.1 °C	4 mm	-7 mm
Mar	38.9 °C	+3.4 °C	11 mm	-27 mm
Apr	36.6 °C	+2.6 °C	60 mm	-28 mm
May	34.5 °C	+2.3 °C	87 mm	-60 mm
Jun	32.5 °C	+2.0 °C	96 mm	-89 mm
Jul	29.8 °C	+0.5 °C	370 mm	+170 mm
Aug	29.6 °C	+0.4 °C	186 mm	-8 mm
Sep	30.6 °C	+0.7 °C	243 mm	+19 mm
Oct	31.5 °C	+0.7 °C	222 mm	+56 mm
Nov	34.0 °C	+1.6 °C	13 mm	-16 mm
Dec	36.3 °C	+2.4 °C	6 mm	-1 mm

The year's extremes

Hottest day

41.8 °C

4 Mar 2025

Coldest day

18.8 °C

13 Jan 2025

Wettest day

74.0 mm

1 Oct 2025

Windiest day

20.3 km/h

13 Mar 2025

Strongest gust

44.3 km/h

13 Mar 2025

Hottest feels-like

46.2 °C

3 Mar 2025

Coldest feels-like

16.4 °C

11 Jan 2025

Sunniest day

11.9 h

14 May 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Effium?

Effium has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 1,291 mm of precipitation per year.

What is the hottest day ever recorded in Effium?

The hottest day measured in Effium between 1940 and 2025 was 4 March 2025, reaching 41.8 °C.

What is the coldest day in Effium?

The coldest day measured in Effium between 1940 and 2025 was 29 December 1975, at 15.9 °C.

Does it snow in Effium?

Almost never: Effium sees virtually no snow, with about 0 frost days per year.

Has the climate of Effium warmed?

Yes: Effium warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Effium?

The wettest day measured in Effium between 1940 and 2025 was 22 June 2020, with 159 mm of rain in 24 hours.

What was the windiest day in Effium?

The windiest day measured in Effium between 1940 and 2025 was 12 April 2006, with winds reaching 24.4 km/h.

What is the warmest month in Effium?

The warmest month in Effium is March (29.5 °C on average); the coldest is July (25.2 °C).

How much does it rain in Effium?

Effium receives on average 1,291 mm of precipitation per year, spread over about 175 rainy days.

Is it sunny in Effium?

Effium gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.

Are there tropical nights in Effium?

Yes: Effium has on average 356 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Effium?

In Effium, between 1940 and 2025, the highest apparent temperature reached 46.2 °C on 3 March 2025, and the lowest was 13.4 °C on 8 January 1957.

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