United States · 1991–2020

Best time to visit
Phelps.

September leads for comfortable weather in Phelps: typically 27.7°C by day, 14.9°C at night, with 96 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high27.7°C

Typical low14.9°C

Rain in September96 mm

Comfort

September

September · October · May

74climate match

Beach

August

August · September · June

68climate match

Outdoors

October

October · April · November

77climate match

The weakest month is January, scoring 5 against September’s 74 — days reach only 7.6°C, 16° below the 24°C the score treats as ideal, and nights drop to -3.6°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

57.6° / -3.6°

Feb

99.7° / -2.3°

Mar

2915.6° / 1.6°

Apr

6022.3° / 6.6°

May

6725.4° / 11.8°

Jun

5529.7° / 17.1°

Jul

4231.2° / 18.7°

Aug

5431° / 18.7°

Sep

7427.7° / 14.9°

Oct

6921.7° / 8°

Nov

3615.7° / 1.4°

Dec

610.1° / -1°

Monthly climate evidence for Phelps — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	7.6°C	-3.6°C	91 mm	10.7	9 h 50	5	Good coverage
February	9.7°C	-2.3°C	87 mm	9.5	10 h 45	9	Good coverage
March	15.6°C	1.6°C	121 mm	11.4	11 h 50	29	Good coverage
April	22.3°C	6.6°C	117 mm	10.9	13 h 06	60	Good coverage
May	25.4°C	11.8°C	135 mm	12.3	14 h 10	67	Good coverage
June	29.7°C	17.1°C	141 mm	11.4	14 h 44	55	Good coverage
July	31.2°C	18.7°C	174 mm	12.4	14 h 31	42	Good coverage
August	31°C	18.7°C	114 mm	8.6	13 h 36	54	Good coverage
September	27.7°C	14.9°C	96 mm	8.2	12 h 23	74	Good coverage
October	21.7°C	8°C	81 mm	8.2	11 h 10	69	Good coverage
November	15.7°C	1.4°C	81 mm	9.1	10 h 06	36	Good coverage
December	10.1°C	-1°C	119 mm	11.1	9 h 35	6	Good coverage

Records at WILLIAMSON, 1993–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.7°C31 Jan 2002	-26.7°C19 Jan 1994	55 mm26 Jan 2021	160 mm2022 · driest 35 mm in 2014	27
February	29.4°C23 Feb 2023	-25.0°C20 Feb 2015	83 mm17 Feb 2023	192 mm2025 · driest 21 mm in 2002	27
March	33.9°C23 Mar 2026	-14.4°C4 Mar 2014	75 mm1 Mar 2021	233 mm1994 · driest 36 mm in 2016	27
April	35.0°C3 Apr 2010	-3.9°C3 Apr 2021	78 mm15 Apr 2007	201 mm2011 · driest 33 mm in 1997	27
May	36.7°C21 May 1996	1.1°C4 May 2005	108 mm31 May 2004	232 mm1996 · driest 26 mm in 2015	26
June	40.0°C30 Jun 2012	7.8°C3 Jun 2025	64 mm10 Jun 1998	200 mm1998 · driest 24 mm in 2012	26
July	40.0°C1 Jul 2012	7.2°C8 Jul 2002	74 mm27 Jul 2022	301 mm2015 · driest 67 mm in 2014	25
August	39.4°C25 Aug 2007	4.4°C8 Aug 2002	95 mm19 Aug 2005	236 mm2014 · driest 33 mm in 2002	26
September	37.2°C4 Sep 2011	4.4°C30 Sep 1993	59 mm18 Sep 2004	190 mm2011 · driest 28 mm in 2007	24
October	33.9°C8 Oct 2007	-2.8°C26 Oct 2013	56 mm28 Oct 2006	164 mm2014 · driest 10 mm in 2024	26
November	31.1°C4 Nov 2003	-10.0°C19 Nov 2014	46 mm27 Nov 2013	154 mm2003 · driest 20 mm in 2012	26
December	26.7°C28 Dec 2015	-17.2°C24 Dec 2022	64 mm19 Dec 2009	239 mm2016 · driest 38 mm in 2006	27

Typical days per month at WILLIAMSON, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	20	3	3
February	<1	0	18	3	2
March	3	<1	13	4	1
April	11	3	3	4	0
May	17	7	0	4	0
June	26	16	0	5	0
July	27	20	0	6	0
August	27	19	0	4	0
September	22	9	0	3	0
October	9	1	1	3	0
November	2	<1	13	3	<1
December	<1	0	19	4	1

How often, not how much — every day in WILLIAMSON’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	2%	35%	10%	47%	4.4–10.7°C
February	5%	36%	11%	48%	5.8–13.6°C
March	26%	35%	12%	47%	13.2–19.5°C
April	45%	35%	12%	45%	20.6–24.5°C
May	52%	37%	13%	48%	23.7–27.7°C
June	63%	32%	13%	41%	28.2–31.6°C
July	61%	35%	17%	44%	29.8–32.8°C
August	73%	27%	11%	27%	29.3–33.1°C
September	71%	25%	11%	26%	26.3–29.9°C
October	52%	25%	9%	26%	20.1–24.0°C
November	22%	30%	9%	37%	12.5–19.2°C
December	4%	34%	11%	45%	7.6–13.0°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.

1994Each stripe is one year’s mean temperature against the 20-year average. Warmest: 2024. Coolest: 1996.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4304076
NOAA station: USC00469610 · WILLIAMSON
Station distance: 22.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 37.51°, 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 WILLIAMSON is what differs

Williamson→Coal Run Village→Chattaroy→South Williamson→Red Jacket→Delbarton→

Or put two places side by side: Phelps vs Williamson

Best time to visitPhelps.