United States · 1991–2020

Best time to visit
McMahon.

October leads for comfortable weather in McMahon: typically 23.7°C by day, 9.9°C at night, with 79 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high23.7°C

Typical low9.9°C

Rain in October79 mm

Comfort

October

October · April · May

82climate match

Beach

September

September · June · August

76climate match

Outdoors

October

October · April · November

78climate match

The weakest month is January, scoring 19 against October’s 82 — days reach only 9.4°C, 15° below the 24°C the score treats as ideal, and nights drop to -3.2°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

199.4° / -3.2°

Feb

3212.7° / -1°

Mar

5017.1° / 3.4°

Apr

7222.7° / 8.6°

May

7127.2° / 14.8°

Jun

5331.6° / 19.4°

Jul

4134.9° / 22.2°

Aug

4434.5° / 21.7°

Sep

7029.6° / 16.6°

Oct

8223.7° / 9.9°

Nov

5116.2° / 3.6°

Dec

2210.2° / -1.8°

Monthly climate evidence for McMahon — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	9.4°C	-3.2°C	32 mm	3.4	9 h 56	19	Good coverage
February	12.7°C	-1°C	39 mm	4	10 h 48	32	Good coverage
March	17.1°C	3.4°C	65 mm	5.6	11 h 51	50	Good coverage
April	22.7°C	8.6°C	101 mm	6.5	13 h 04	72	Good coverage
May	27.2°C	14.8°C	129 mm	8.4	14 h 04	71	Good coverage
June	31.6°C	19.4°C	113 mm	6.6	14 h 37	53	Good coverage
July	34.9°C	22.2°C	91 mm	5.3	14 h 24	41	Good coverage
August	34.5°C	21.7°C	85 mm	5.9	13 h 32	44	Good coverage
September	29.6°C	16.6°C	81 mm	5.2	12 h 22	70	Good coverage
October	23.7°C	9.9°C	79 mm	5	11 h 12	82	Good coverage
November	16.2°C	3.6°C	49 mm	3.8	10 h 11	51	Good coverage
December	10.2°C	-1.8°C	45 mm	3.9	9 h 42	22	Good coverage

Records at PERRY, 1898–2009
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	27.2°C20 Jan 1986	-28.9°C18 Jan 1930	56 mm30 Jan 2002	149 mm1949 · driest 0 mm in 1961	93
February	35.0°C23 Feb 1996	-27.2°C12 Feb 1899	66 mm21 Feb 1997	133 mm1915 · driest 0 mm in 2006	93
March	35.6°C21 Mar 1916	-17.2°C11 Mar 1948	106 mm5 Mar 2004	188 mm1973 · driest 0 mm in 1936	93
April	38.9°C12 Apr 1972	-9.4°C7 Apr 1990	118 mm28 Apr 1994	306 mm1994 · driest 4 mm in 1989	95
May	39.4°C30 May 1985	-1.1°C1 May 1903	136 mm9 May 1955	428 mm1955 · driest 14 mm in 2004	94
June	42.8°C15 Jun 1953	6.7°C11 Jun 1903	122 mm8 Jun 1901	317 mm2007 · driest 1 mm in 1933	94
July	45.6°C14 Jul 1954	10.0°C15 Jul 1930	126 mm4 Jul 1960	225 mm1960 · driest 0 mm in 1980	94
August	47.2°C11 Aug 1936	7.2°C31 Aug 1915	131 mm4 Aug 1992	298 mm2009 · driest 0 mm in 2000	94
September	42.8°C5 Sep 2000	-1.1°C30 Sep 1984	179 mm29 Sep 1986	366 mm1986 · driest 0 mm in 2000	92
October	37.2°C3 Oct 1951	-9.4°C30 Oct 1917	102 mm5 Oct 1998	241 mm1941 · driest 0 mm in 1952	93
November	31.1°C8 Nov 1980	-12.8°C17 Nov 1959	102 mm1 Nov 1998	168 mm1931 · driest 0 mm in 1949	94
December	30.0°C24 Dec 1955	-27.8°C22 Dec 1989	66 mm19 Dec 1933	145 mm1999 · driest 0 mm in 1950	93

Typical days per month at PERRY, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	<1	0	23	<1	<1
February	<1	<1	17	1	<1
March	5	<1	9	2	<1
April	12	3	1	3	0
May	22	9	0	4	0
June	28	21	0	4	0
July	30	28	0	3	0
August	30	26	0	3	0
September	24	15	0	3	0
October	14	4	<1	2	0
November	3	<1	8	2	0
December	0	0	19	2	<1

How often, not how much — every day in PERRY’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	5%	12%	3%	8%	5.8–12.6°C
February	16%	15%	5%	11%	8.2–15.8°C
March	37%	17%	6%	15%	13.4–21.1°C
April	60%	22%	10%	20%	20.1–25.6°C
May	70%	27%	12%	32%	24.8–29.0°C
June	76%	24%	12%	23%	29.4–34.0°C
July	83%	17%	8%	14%	32.7–37.3°C
August	81%	19%	8%	17%	31.9–37.2°C
September	80%	18%	8%	15%	27.6–32.8°C
October	71%	16%	7%	14%	21.9–26.8°C
November	31%	14%	6%	10%	13.4–19.5°C
December	7%	12%	4%	8%	7.0–13.0°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.

1899Each stripe is one year’s mean temperature against the 81-year average. Warmest: 1954. Coolest: 1989.2009

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4542504
NOAA station: USC00347012 · PERRY
Station distance: 5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 19 usable years
Daylight: Calculated from latitude 36.32°, 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 PERRY is what differs

Perry→Red Rock→Lucien→Black Bear→Drace→Gansel→

Or put two places side by side: McMahon vs Perry

Best time to visitMcMahon.

October

September

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
McMahon.

The whole year,
without the guesswork.

Nearby, measured,
and named.