United States · 1991–2020

Best time to visit
Coryville.

August leads for comfortable weather in Coryville: typically 25.6°C by day, 12.7°C at night, with 104 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high25.6°C

Typical low12.7°C

Rain in August104 mm

Comfort

August

August · June · July

75climate match

Beach

July

July · August · June

51climate match

Outdoors

September

September · May · June

74climate match

The weakest month is January, scoring 5 against August’s 75 — days reach only -0.1°C, 24° 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

5-0.1° / -10°

Feb

50.7° / -9.9°

Mar

56.2° / -5.7°

Apr

2413.8° / -0.2°

May

5620.3° / 6.2°

Jun

7424.3° / 10.9°

Jul

7126.8° / 13.5°

Aug

7525.6° / 12.7°

Sep

7022.4° / 9.3°

Oct

3415.3° / 3.4°

Nov

58.5° / -2.2°

Dec

52.3° / -5.6°

Monthly climate evidence for Coryville — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-0.1°C	-10°C	78 mm	11.2	9 h 26	5	Good coverage
February	0.7°C	-9.9°C	57 mm	9.6	10 h 31	5	Good coverage
March	6.2°C	-5.7°C	76 mm	10.1	11 h 48	5	Good coverage
April	13.8°C	-0.2°C	90 mm	11.3	13 h 17	24	Good coverage
May	20.3°C	6.2°C	97 mm	10.7	14 h 32	56	Good coverage
June	24.3°C	10.9°C	108 mm	11.3	15 h 12	74	Good coverage
July	26.8°C	13.5°C	110 mm	10.4	14 h 56	71	Good coverage
August	25.6°C	12.7°C	104 mm	9.4	13 h 52	75	Good coverage
September	22.4°C	9.3°C	94 mm	9.5	12 h 26	70	Good coverage
October	15.3°C	3.4°C	100 mm	11.5	11 h 00	34	Good coverage
November	8.5°C	-2.2°C	83 mm	10.3	9 h 45	5	Good coverage
December	2.3°C	-5.6°C	82 mm	11.1	9 h 09	5	Good coverage

Records at PORT ALLEGANY, 1969–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.3°C9 Jan 2008	-28.3°C18 Jan 2009	61 mm12 Jan 2018	135 mm2024 · driest 20 mm in 2025	22
February	22.2°C25 Feb 2017	-32.2°C16 Feb 2015	38 mm16 Feb 2025	122 mm2011 · driest 27 mm in 2010	22
March	25.6°C23 Mar 2012	-26.1°C1 Mar 2015	49 mm15 Mar 2007	162 mm2008 · driest 35 mm in 2021	22
April	30.6°C17 Apr 2023	-11.1°C5 Apr 2016	48 mm12 Apr 2024	199 mm2011 · driest 43 mm in 2012	23
May	32.2°C30 May 2006	-6.1°C10 May 2017	77 mm29 May 2009	202 mm2011 · driest 45 mm in 2005	23
June	32.8°C24 Jun 2025	-0.6°C9 Jun 2017	54 mm7 Jun 2025	187 mm2014 · driest 56 mm in 2016	22
July	37.2°C23 Jul 2011	2.8°C1 Jul 2007	86 mm18 Jul 2021	254 mm2021 · driest 55 mm in 2025	22
August	32.8°C2 Aug 2007	2.8°C31 Aug 2025	78 mm16 Aug 2019	178 mm2016 · driest 48 mm in 2020	22
September	32.2°C4 Sep 2011	-3.3°C19 Sep 2020	91 mm30 Sep 2015	168 mm2015 · driest 44 mm in 2016	21
October	29.4°C2 Oct 2019	-8.9°C31 Oct 1975	55 mm30 Oct 2012	229 mm2016 · driest 31 mm in 2022	22
November	23.9°C11 Nov 2020	-15.6°C23 Nov 2018	74 mm12 Nov 2022	137 mm2005 · driest 28 mm in 2012	21
December	18.9°C5 Dec 2012	-22.8°C31 Dec 2017	95 mm1 Dec 2010	152 mm2012 · driest 43 mm in 2005	22

Typical days per month at PORT ALLEGANY, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	2	12
February	0	0	27	2	11
March	<1	0	26	2	6
April	2	<1	17	3	2
May	8	<1	5	4	<1
June	15	3	<1	4	0
July	23	6	0	4	0
August	20	3	0	3	0
September	10	2	<1	3	0
October	2	0	10	4	<1
November	0	0	22	2	3
December	0	0	28	3	9

How often, not how much — every day in PORT ALLEGANY’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	0%	34%	6%	46%	-3.2–2.5°C
February	<1%	33%	6%	45%	-1.8–5.6°C
March	3%	33%	7%	44%	2.9–10.6°C
April	15%	37%	9%	51%	11.0–17.0°C
May	38%	37%	10%	49%	18.0–23.2°C
June	53%	37%	13%	48%	23.2–25.3°C
July	65%	33%	12%	41%	25.4–28.3°C
August	67%	31%	11%	37%	24.5–27.2°C
September	52%	33%	10%	44%	21.3–23.8°C
October	18%	35%	8%	47%	14.0–17.9°C
November	3%	35%	9%	50%	5.6–11.6°C
December	0%	37%	8%	52%	0.0–5.8°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.

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5185506
NOAA station: USC00367103 · PORT ALLEGANY
Station distance: 11.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 41.88°, 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 PORT ALLEGANY is what differs

Port Allegany→Smethport→Annin Creek→Burtville→East Smethport→Farmers Valley→

Or put two places side by side: Coryville vs Port Allegany

Best time to visitCoryville.