United States · 1991–2020

Best time to visit
Walnut Grove.

October leads for comfortable weather in Walnut Grove: typically 23.1°C by day, 10.1°C at night, with 86 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high23.1°C

Typical low10.1°C

Rain in October86 mm

Comfort

October

October · April · May

79climate match

Beach

September

September · August · June

72climate match

Outdoors

October

October · April · November

79climate match

The weakest month is January, scoring 20 against October’s 79 — days reach only 12.1°C, 12° below the 24°C the score treats as ideal, and nights drop to 0.2°C.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

2012.1° / 0.2°

Feb

2513.9° / 1.3°

Mar

4719° / 5°

Apr

7823.6° / 8.9°

May

7727.5° / 13.9°

Jun

5530.9° / 18.5°

Jul

4532.4° / 20.5°

Aug

4931.6° / 20.3°

Sep

7128.5° / 16.6°

Oct

7923.1° / 10.1°

Nov

4817.6° / 4.1°

Dec

2512.6° / 0.7°

Monthly climate evidence for Walnut Grove — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	12.1°C	0.2°C	106 mm	7.8	10 h 08	20	Good coverage
February	13.9°C	1.3°C	125 mm	7.6	10 h 55	25	Good coverage
March	19°C	5°C	137 mm	7.7	11 h 52	47	Good coverage
April	23.6°C	8.9°C	75 mm	6.9	12 h 59	78	Good coverage
May	27.5°C	13.9°C	76 mm	6.7	13 h 53	77	Good coverage
June	30.9°C	18.5°C	112 mm	8.6	14 h 23	55	Good coverage
July	32.4°C	20.5°C	121 mm	8.7	14 h 11	45	Good coverage
August	31.6°C	20.3°C	117 mm	8.2	13 h 24	49	Good coverage
September	28.5°C	16.6°C	99 mm	6	12 h 20	71	Good coverage
October	23.1°C	10.1°C	86 mm	5.4	11 h 17	79	Good coverage
November	17.6°C	4.1°C	95 mm	6.1	10 h 22	48	Good coverage
December	12.6°C	0.7°C	96 mm	6.5	9 h 55	25	Good coverage

Records at COVINGTON, 1893–2013
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	27.2°C12 Jan 1949	-21.7°C21 Jan 1985	118 mm11 Jan 1972	297 mm1936 · driest 30 mm in 1927	95
February	31.1°C22 Feb 1927	-23.3°C13 Feb 1899	181 mm27 Feb 1902	341 mm1902 · driest 16 mm in 1978	94
March	32.2°C23 Mar 1907	-12.8°C4 Mar 1943	154 mm17 Mar 1990	312 mm1942 · driest 22 mm in 2004	96
April	35.0°C27 Apr 1986	-4.4°C8 Apr 2007	121 mm2 Apr 1936	288 mm1936 · driest 10 mm in 2012	99
May	37.8°C29 May 1941	-0.6°C4 May 1897	93 mm15 May 1976	296 mm2003 · driest 6 mm in 1951	99
June	40.6°C27 Jun 1952	6.7°C1 Jun 1972	113 mm23 Jun 1900	396 mm1900 · driest 13 mm in 1979	97
July	43.3°C8 Jul 1927	11.1°C15 Jul 1967	108 mm1 Jul 2003	296 mm1984 · driest 15 mm in 1983	98
August	40.6°C16 Aug 1954	10.6°C22 Aug 1927	122 mm11 Aug 1982	273 mm1901 · driest 5 mm in 1935	97
September	39.4°C18 Sep 1931	1.1°C30 Sep 1967	106 mm7 Sep 2004	323 mm2004 · driest 0 mm in 1904	95
October	36.7°C6 Oct 1954	-5.0°C30 Oct 1952	124 mm1 Oct 1965	245 mm1898 · driest 0 mm in 1951	96
November	30.6°C2 Nov 1974	-15.0°C25 Nov 1950	120 mm27 Nov 1948	439 mm1948 · driest 6 mm in 2012	96
December	26.1°C1 Dec 1933	-17.8°C13 Dec 1962	95 mm15 Dec 1972	232 mm1953 · driest 18 mm in 1988	94

Typical days per month at COVINGTON, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	17	4
February	<1	0	13	4
March	6	<1	7	4
April	13	2	<1	3
May	24	9	0	3
June	28	20	0	4
July	30	25	0	3
August	30	23	0	4
September	26	12	0	3
October	12	<1	<1	2
November	2	0	8	3
December	<1	0	15	3

How often, not how much — every day in COVINGTON’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	8%	28%	14%	29%	9.0–15.4°C
February	14%	29%	15%	33%	11.1–17.6°C
March	38%	28%	15%	29%	16.0–22.4°C
April	63%	24%	11%	23%	21.4–25.9°C
May	75%	23%	10%	24%	25.6–30.4°C
June	72%	27%	11%	29%	28.7–33.7°C
July	69%	31%	14%	39%	30.4–35.0°C
August	74%	26%	12%	27%	29.6–34.1°C
September	79%	21%	9%	20%	26.8–31.5°C
October	70%	17%	7%	14%	21.7–26.3°C
November	33%	20%	9%	17%	15.7–20.5°C
December	10%	27%	13%	28%	9.8–15.8°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1894Each stripe is one year’s mean temperature against the 82-year average. Warmest: 2012. Coolest: 1897.2012

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4229317
NOAA station: USC00092318 · COVINGTON
Station distance: 16.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 33.74°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from COVINGTON is what differs

Conyers→Covington→Social Circle→Lakeview Estates→Oxford→Porterdale→

Or put two places side by side: Walnut Grove vs Conyers

Best time to visitWalnut Grove.

October

September

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Walnut Grove.

The whole year,
without the guesswork.

Nearby, measured,
and named.