United States · 1991–2020

Best time to visit
Coulterville.

September leads for comfortable weather in Coulterville: typically 26.7°C by day, 12.6°C at night, with 70 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.7°C

Typical low12.6°C

Rain in September70 mm

Comfort

September

September · May · June

79climate match

Beach

August

August · July · June

77climate match

Outdoors

October

October · April · September

76climate match

The weakest month is January, scoring 5 against September’s 79 — days reach only 4.8°C, 19° below the 24°C the score treats as ideal.

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

54.8° / -5.2°

Feb

87.8° / -3.1°

Mar

2613.6° / 1°

Apr

5119.4° / 6.3°

May

7424.4° / 11.7°

Jun

6629° / 16.8°

Jul

5731.1° / 18.9°

Aug

6630.6° / 17.7°

Sep

7926.7° / 12.6°

Oct

6321° / 7.1°

Nov

2412.8° / 1.6°

Dec

56.5° / -3.3°

Monthly climate evidence for Coulterville — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	4.8°C	-5.2°C	77 mm	6.7	9 h 47	5	Good coverage
February	7.8°C	-3.1°C	61 mm	5.8	10 h 43	8	Good coverage
March	13.6°C	1°C	102 mm	8.6	11 h 50	26	Good coverage
April	19.4°C	6.3°C	131 mm	8.6	13 h 08	51	Good coverage
May	24.4°C	11.7°C	129 mm	9.7	14 h 13	74	Good coverage
June	29°C	16.8°C	106 mm	7.9	14 h 48	66	Good coverage
July	31.1°C	18.9°C	101 mm	6.9	14 h 34	57	Good coverage
August	30.6°C	17.7°C	68 mm	6.5	13 h 38	66	Good coverage
September	26.7°C	12.6°C	70 mm	6.3	12 h 23	79	Good coverage
October	21°C	7.1°C	97 mm	7.4	11 h 08	63	Good coverage
November	12.8°C	1.6°C	107 mm	7.7	10 h 03	24	Good coverage
December	6.5°C	-3.3°C	66 mm	6.9	9 h 31	5	Good coverage

Records at SPARTA 1 W, 1893–2014
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.0°C24 Jan 1943	-28.9°C18 Jan 1930	105 mm30 Jan 1916	302 mm1916 · driest 4 mm in 1986	116
February	27.8°C10 Feb 1932	-30.6°C12 Feb 1899	82 mm13 Feb 1946	144 mm1950 · driest 6 mm in 1947	115
March	32.2°C24 Mar 1929	-21.1°C5 Mar 1960	132 mm25 Mar 1904	327 mm1945 · driest 1 mm in 1910	116
April	34.4°C11 Apr 1930	-6.7°C21 Apr 1904	128 mm29 Apr 1996	288 mm1994 · driest 14 mm in 1915	118
May	37.2°C30 May 1934	-2.2°C1 May 1903	97 mm7 May 1956	308 mm1990 · driest 13 mm in 1914	117
June	41.7°C29 Jun 1931	4.4°C16 Jun 1917	115 mm11 Jun 1938	275 mm1915 · driest 2 mm in 1991	116
July	45.6°C14 Jul 1936	8.9°C4 Jul 1968	104 mm28 Jul 1979	338 mm1958 · driest 3 mm in 1918	117
August	44.4°C9 Aug 1930	5.0°C15 Aug 1994	160 mm5 Aug 1923	336 mm1923 · driest 2 mm in 1909	118
September	40.6°C5 Sep 1899	-5.6°C30 Sep 1899	80 mm18 Sep 1988	209 mm1926 · driest 5 mm in 1985	117
October	35.6°C2 Oct 1953	-7.2°C31 Oct 1908	127 mm12 Oct 1893	383 mm1919 · driest 0 mm in 1992	119
November	29.4°C4 Nov 1924	-20.0°C30 Nov 1929	106 mm19 Nov 1985	291 mm1985 · driest 5 mm in 1949	119
December	24.4°C3 Dec 1970	-27.2°C20 Dec 1901	136 mm21 Dec 1967	268 mm1982 · driest 4 mm in 1955	117

Typical days per month at SPARTA 1 W, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	25	3	2
February	<1	0	21	2	2
March	2	<1	16	3	<1
April	6	<1	5	4	0
May	16	4	<1	4	0
June	25	14	0	3	0
July	29	21	0	3	0
August	29	18	0	2	0
September	19	8	<1	2	0
October	8	1	3	3	0
November	<1	0	13	3	<1
December	0	0	22	2	2

How often, not how much — every day in SPARTA 1 W’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	1%	21%	7%	20%	1.5–8.6°C
February	4%	23%	7%	22%	3.1–11.3°C
March	16%	27%	11%	32%	9.9–17.5°C
April	39%	30%	12%	36%	17.3–22.6°C
May	62%	30%	12%	37%	22.6–27.8°C
June	74%	26%	10%	27%	27.8–32.6°C
July	78%	22%	10%	20%	30.2–34.9°C
August	79%	21%	9%	19%	29.5–34.4°C
September	75%	22%	9%	20%	25.5–30.5°C
October	55%	20%	9%	20%	19.5–24.9°C
November	16%	22%	10%	21%	10.6–16.4°C
December	2%	22%	8%	23%	3.8–10.1°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.

1893Each stripe is one year’s mean temperature against the 112-year average. Warmest: 1931. Coolest: 1996.2012

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4236454
NOAA station: USC00118147 · SPARTA 1 W
Station distance: 12.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 38.19°, 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 SPARTA 1 W is what differs

Sparta→Steeleville→Marissa→Percy→Tilden→Willisville→

Or put two places side by side: Coulterville vs Sparta

Best time to visitCoulterville.