United States · 1991–2020

Best time to visit
Clymer.

September leads for comfortable weather in Clymer: typically 24°C by day, 11.4°C at night, with 106 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high24°C

Typical low11.4°C

Rain in September106 mm

Comfort

September

September · August · June

77climate match

Beach

August

August · July · June

58climate match

Outdoors

October

October · May · September

68climate match

The weakest month is January, scoring 5 against September’s 77 — days reach only 2.5°C, 21° 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

52.5° / -7°

Feb

54.4° / -6.2°

Mar

59.8° / -2.5°

Apr

3717.1° / 2.8°

May

6322.3° / 8.3°

Jun

6926.3° / 12.9°

Jul

6428.3° / 15.3°

Aug

7227.5° / 14.8°

Sep

7724° / 11.4°

Oct

4817.8° / 5.4°

Nov

1510.9° / 0°

Dec

55.1° / -3.7°

Monthly climate evidence for Clymer — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	2.5°C	-7°C	93 mm	12.9	9 h 33	5	Strong coverage
February	4.4°C	-6.2°C	75 mm	10.7	10 h 35	5	Strong coverage
March	9.8°C	-2.5°C	101 mm	11.2	11 h 49	5	Strong coverage
April	17.1°C	2.8°C	102 mm	12.2	13 h 14	37	Strong coverage
May	22.3°C	8.3°C	111 mm	12.8	14 h 25	63	Strong coverage
June	26.3°C	12.9°C	121 mm	11.5	15 h 04	69	Strong coverage
July	28.3°C	15.3°C	131 mm	11.4	14 h 49	64	Strong coverage
August	27.5°C	14.8°C	106 mm	9.8	13 h 47	72	Strong coverage
September	24°C	11.4°C	106 mm	9.6	12 h 25	77	Strong coverage
October	17.8°C	5.4°C	86 mm	10.4	11 h 03	48	Strong coverage
November	10.9°C	0°C	93 mm	10.4	9 h 51	15	Strong coverage
December	5.1°C	-3.7°C	95 mm	11.8	9 h 16	5	Strong coverage

What has changed

Clymer runs +0.5°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+0.2

Feb

+1.1

Mar

+0.1

Apr

+0.4

May

+0.4

Jun

-0.1

Jul

+0.7

Aug

+0.2

Sep

+0.9

Oct

+0.5

Nov

-0.4

Dec

+1.4

September daytime highs, 2011–2025. Last recorded: 25.5°C.

Records at INDIANA 3 SE, 1946–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.9°C25 Jan 1950	-31.1°C19 Jan 1994	65 mm6 Jan 2005	206 mm2005 · driest 21 mm in 1967	79
February	25.6°C25 Feb 2017	-32.2°C2 Feb 1961	53 mm16 Feb 2018	220 mm2018 · driest 18 mm in 1987	79
March	30.0°C31 Mar 1998	-23.3°C8 Mar 1960	62 mm29 Mar 1985	204 mm1989 · driest 36 mm in 1969	79
April	32.8°C18 Apr 1976	-12.2°C7 Apr 1950	57 mm3 Apr 2024	233 mm2024 · driest 31 mm in 1971	80
May	32.8°C30 May 2018	-8.9°C10 May 1947	76 mm7 May 2022	222 mm2022 · driest 32 mm in 1964	80
June	35.0°C21 Jun 1953	-0.6°C8 Jun 1977	109 mm17 Jun 1978	307 mm1972 · driest 27 mm in 1967	80
July	36.7°C7 Jul 1988	1.7°C1 Jul 1988	134 mm20 Jul 1977	338 mm1977 · driest 34 mm in 1968	80
August	37.2°C17 Aug 1988	1.1°C29 Aug 1965	79 mm30 Aug 1959	216 mm2007 · driest 21 mm in 1957	79
September	36.1°C2 Sep 1953	-3.9°C27 Sep 1957	122 mm18 Sep 2004	299 mm2018 · driest 9 mm in 1959	79
October	30.6°C3 Oct 1951	-11.7°C21 Oct 1952	99 mm16 Oct 1954	211 mm1954 · driest 10 mm in 1963	80
November	27.2°C3 Nov 1961	-20.0°C30 Nov 1958	72 mm8 Nov 1997	270 mm1985 · driest 23 mm in 2012	80
December	24.4°C9 Dec 1999	-28.3°C17 Dec 1951	51 mm1 Dec 2010	183 mm2008 · driest 15 mm in 1955	80

Typical days per month at INDIANA 3 SE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	3	10
February	<1	0	24	3	8
March	<1	0	22	4	4
April	3	<1	10	4	1
May	11	2	2	4	0
June	21	6	0	4	0
July	27	9	0	5	0
August	25	7	0	4	0
September	13	3	<1	4	0
October	4	<1	5	3	<1
November	<1	0	17	3	2
December	0	0	24	3	6

How often, not how much — every day in INDIANA 3 SE’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%	39%	8%	57%	-1.4–6.1°C
February	<1%	37%	9%	51%	0.3–8.1°C
March	8%	37%	10%	53%	6.2–13.1°C
April	26%	40%	12%	56%	14.1–19.4°C
May	46%	40%	13%	55%	19.5–25.0°C
June	62%	36%	13%	47%	24.6–27.9°C
July	65%	35%	14%	45%	26.6–30.2°C
August	69%	31%	12%	34%	25.9–28.9°C
September	61%	30%	11%	38%	21.7–25.9°C
October	32%	31%	9%	39%	15.7–20.4°C
November	7%	35%	9%	48%	7.7–13.5°C
December	<1%	38%	9%	54%	1.0–8.1°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.

1947Each stripe is one year’s mean temperature against the 76-year average. Warmest: 1998. Coolest: 1963.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5184686
NOAA station: USC00364214 · INDIANA 3 SE
Station distance: 12 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 40.67°, 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 INDIANA 3 SE is what differs

Indiana→Homer City→Chevy Chase Heights→Black Lick→Lucerne Mines→Heilwood→

Or put two places side by side: Clymer vs Indiana

Best time to visitClymer.