United States · 1991–2020

Best time to visit
Saint Marys.

August leads for comfortable weather in Saint Marys: typically 25.3°C by day, 12.7°C at night, with 108 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high25.3°C

Typical low12.7°C

Rain in August108 mm

Comfort

August

August · June · July

75climate match

Beach

July

July · August · June

49climate match

Outdoors

September

September · May · June

74climate match

The weakest month is January, scoring 5 against August’s 75 — days reach only -0.8°C, 25° 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

5-0.8° / -10.5°

Feb

50.6° / -10.3°

Mar

56° / -5.9°

Apr

2213.9° / -0.2°

May

5320.3° / 6.2°

Jun

7323.9° / 10.9°

Jul

7226.2° / 13.5°

Aug

7525.3° / 12.7°

Sep

6922.2° / 9.4°

Oct

3415° / 3.5°

Nov

58.2° / -1.9°

Dec

51.8° / -6°

Monthly climate evidence for Saint Marys — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-0.8°C	-10.5°C	90 mm	12.8	9 h 29	5	Good coverage
February	0.6°C	-10.3°C	67 mm	10.4	10 h 32	5	Good coverage
March	6°C	-5.9°C	86 mm	11.5	11 h 48	5	Good coverage
April	13.9°C	-0.2°C	100 mm	12.3	13 h 16	22	Good coverage
May	20.3°C	6.2°C	110 mm	12	14 h 29	53	Good coverage
June	23.9°C	10.9°C	114 mm	11.7	15 h 09	73	Good coverage
July	26.2°C	13.5°C	118 mm	10	14 h 53	72	Good coverage
August	25.3°C	12.7°C	108 mm	10	13 h 50	75	Good coverage
September	22.2°C	9.4°C	100 mm	9.1	12 h 25	69	Good coverage
October	15°C	3.5°C	98 mm	10.9	11 h 01	34	Good coverage
November	8.2°C	-1.9°C	96 mm	11	9 h 48	5	Good coverage
December	1.8°C	-6°C	93 mm	12.6	9 h 12	5	Good coverage

Records at GLEN HAZEL 2 NE DAM, 1955–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.8°C9 Jan 2008	-29.4°C24 Jan 2011	48 mm12 Jan 2018	153 mm2024 · driest 39 mm in 2025	23
February	21.1°C25 Feb 2017	-31.7°C16 Feb 2015	36 mm28 Feb 2011	121 mm2022 · driest 26 mm in 2010	23
March	26.1°C24 Mar 2012	-28.9°C1 Mar 2015	49 mm9 Mar 2009	185 mm2008 · driest 42 mm in 2013	22
April	30.6°C28 Apr 2009	-12.2°C1 Apr 1969	46 mm12 Apr 2024	179 mm2011 · driest 38 mm in 2012	24
May	31.7°C30 May 2006	-6.7°C11 May 2020	50 mm29 May 2013	185 mm2014 · driest 52 mm in 2005	21
June	32.8°C23 Jun 2024	0.0°C1 Jun 2009	69 mm21 Jun 2019	249 mm2019 · driest 47 mm in 2011	21
July	37.8°C23 Jul 2011	4.4°C1 Jul 2010	91 mm22 Jul 2003	232 mm2004 · driest 34 mm in 2011	22
August	32.8°C2 Aug 2024	4.4°C4 Aug 1966	67 mm8 Aug 2007	194 mm2016 · driest 46 mm in 2017	24
September	33.3°C4 Sep 2011	-1.1°C19 Sep 2020	82 mm9 Sep 2004	172 mm2022 · driest 44 mm in 1955	23
October	28.9°C3 Oct 2019	-10.0°C24 Oct 1969	58 mm20 Oct 2006	231 mm2006 · driest 36 mm in 2024	22
November	24.4°C5 Nov 2003	-15.0°C20 Nov 2014	57 mm1 Nov 2019	146 mm1970 · driest 23 mm in 2016	24
December	18.9°C5 Dec 2012	-23.3°C21 Dec 2004	79 mm1 Dec 2010	168 mm2012 · driest 47 mm in 2005	25

Typical days per month at GLEN HAZEL 2 NE DAM, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	3	12
February	0	0	27	2	11
March	<1	0	26	3	5
April	2	<1	18	3	2
May	8	<1	4	4	<1
June	14	2	<1	4	0
July	21	4	0	4	0
August	19	2	0	4	0
September	9	1	<1	3	0
October	2	0	9	3	<1
November	0	0	22	3	3
December	0	0	28	4	9

How often, not how much — every day in GLEN HAZEL 2 NE DAM’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%	41%	8%	58%	-3.8–2.1°C
February	<1%	39%	7%	55%	-3.4–4.8°C
March	2%	38%	9%	57%	2.7–10.4°C
April	15%	42%	11%	57%	11.0–16.8°C
May	36%	39%	13%	54%	17.4–23.0°C
June	51%	37%	13%	48%	22.5–25.5°C
July	65%	33%	13%	43%	24.2–28.2°C
August	64%	32%	12%	39%	24.2–26.7°C
September	53%	32%	11%	43%	20.6–23.6°C
October	17%	35%	9%	47%	13.1–17.4°C
November	3%	39%	10%	57%	5.1–10.9°C
December	0%	43%	9%	64%	-0.5–5.4°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 5210117
NOAA station: USC00363311 · GLEN HAZEL 2 NE DAM
Station distance: 15.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 41.43°, 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 GLEN HAZEL 2 NE DAM is what differs

Johnsonburg→Wilcox→Glen Hazel→Grandview→Instanter→Kaulmont→

Or put two places side by side: Saint Marys vs Johnsonburg

Best time to visitSaint Marys.