United States · 1991–2020

Best time to visit
Saint Marys.

September leads for comfortable weather in Saint Marys: typically 27.5°C by day, 13.7°C at night, with 70 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high27.5°C

Typical low13.7°C

Rain in September70 mm

Comfort

September

September · May · October

79climate match

Beach

August

August · June · July

69climate match

Outdoors

October

October · April · September

84climate match

The weakest month is January, scoring 5 against September’s 79 — days reach only 4.6°C, 19° below the 24°C the score treats as ideal, and nights drop to -7.3°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

54.6° / -7.3°

Feb

87.5° / -5.3°

Mar

3513.9° / 0.1°

Apr

5819.8° / 5.7°

May

7424.6° / 11.9°

Jun

6029.6° / 17.5°

Jul

4732.4° / 20.1°

Aug

5531.6° / 18.7°

Sep

7927.5° / 13.7°

Oct

6920.9° / 6.8°

Nov

3513° / 0.1°

Dec

56.4° / -5.2°

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	4.6°C	-7.3°C	17 mm	3.2	9 h 41	5	Strong coverage
February	7.5°C	-5.3°C	29 mm	3.9	10 h 40	8	Strong coverage
March	13.9°C	0.1°C	53 mm	5.6	11 h 50	35	Strong coverage
April	19.8°C	5.7°C	89 mm	7.6	13 h 10	58	Strong coverage
May	24.6°C	11.9°C	129 mm	9.2	14 h 18	74	Strong coverage
June	29.6°C	17.5°C	124 mm	7.9	14 h 54	60	Strong coverage
July	32.4°C	20.1°C	118 mm	8	14 h 40	47	Strong coverage
August	31.6°C	18.7°C	103 mm	7.4	13 h 42	55	Strong coverage
September	27.5°C	13.7°C	70 mm	5.7	12 h 24	79	Strong coverage
October	20.9°C	6.8°C	61 mm	5.6	11 h 06	69	Strong coverage
November	13°C	0.1°C	42 mm	4.4	9 h 58	35	Strong coverage
December	6.4°C	-5.2°C	33 mm	3.3	9 h 25	5	Strong coverage

What has changed

Saint Marys runs -0.3°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

0.0

Feb

-0.9

Mar

+0.3

Apr

-1.5

May

-1.4

Jun

+0.3

Jul

-1.0

Aug

-1.1

Sep

+0.9

Oct

-0.4

Nov

+0.3

Dec

+1.4

September daytime highs, 2011–2025. Last recorded: 26.8°C.

Records at WAMEGO 4 W, 1900–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.9°C29 Jan 2013	-32.2°C4 Jan 1947	56 mm6 Jan 2025	136 mm1949 · driest 0 mm in 1986	115
February	28.9°C29 Feb 1972	-30.0°C6 Feb 1982	51 mm21 Feb 1997	109 mm2001 · driest 0 mm in 1917	114
March	35.6°C22 Mar 2026	-23.9°C12 Mar 1998	59 mm30 Mar 1980	208 mm1973 · driest 0 mm in 1968	113
April	35.0°C27 Apr 1956	-17.2°C3 Apr 1975	86 mm27 Apr 2009	258 mm1944 · driest 16 mm in 1990	112
May	38.9°C30 May 1934	-3.3°C6 May 1944	102 mm22 May 1918	341 mm1995 · driest 13 mm in 2009	113
June	43.3°C11 Jun 1953	3.9°C1 Jun 1982	137 mm5 Jun 1983	335 mm1967 · driest 19 mm in 2002	112
July	45.6°C12 Jul 1954	7.8°C5 Jul 1972	152 mm3 Jul 1958	391 mm1993 · driest 0 mm in 1983	114
August	45.6°C13 Aug 1936	6.1°C29 Aug 1946	176 mm13 Aug 1946	289 mm2006 · driest 3 mm in 1913	111
September	43.3°C3 Sep 1947	-3.3°C30 Sep 1984	132 mm13 Sep 1977	300 mm1973 · driest 1 mm in 2000	113
October	36.7°C7 Oct 1939	-10.6°C31 Oct 1993	124 mm11 Oct 1973	224 mm1941 · driest 0 mm in 1938	113
November	31.1°C6 Nov 1915	-19.4°C28 Nov 1976	97 mm12 Nov 1922	170 mm1928 · driest 0 mm in 1989	112
December	26.7°C6 Dec 1939	-31.1°C23 Dec 1989	62 mm11 Dec 2007	98 mm1944 · driest 0 mm in 1976	113

Typical days per month at WAMEGO 4 W, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	<1	2
February	<1	0	23	<1	2
March	3	<1	16	2	1
April	8	1	5	3	<1
May	17	6	<1	4	0
June	27	15	0	3	0
July	30	23	0	3	0
August	30	21	0	3	0
September	21	10	0	2	0
October	9	2	4	2	<1
November	1	0	15	1	<1
December	0	0	26	1	2

The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 79); on 2011–2025 it is September (81). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in WAMEGO 4 W’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%	11%	2%	5%	-0.2–8.9°C
February	6%	13%	3%	9%	2.9–12.2°C
March	23%	18%	6%	14%	9.5–17.9°C
April	45%	24%	9%	23%	17.3–22.6°C
May	62%	29%	13%	35%	22.6–27.3°C
June	72%	27%	13%	31%	27.9–32.1°C
July	77%	24%	11%	23%	30.6–35.7°C
August	77%	23%	10%	24%	29.2–35.4°C
September	76%	21%	9%	19%	25.3–30.9°C
October	57%	17%	6%	16%	18.4–24.5°C
November	18%	13%	5%	8%	10.3–15.9°C
December	2%	11%	3%	7%	2.9–9.4°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.

1913Each stripe is one year’s mean temperature against the 105-year average. Warmest: 1954. Coolest: 2008.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4278741
NOAA station: USC00148563 · WAMEGO 4 W
Station distance: 25.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 39.19°, 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 WAMEGO 4 W is what differs

Wamego→Alma→Westmoreland→Saint George→McFarland→Paxico→

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

Best time to visitSaint Marys.

September

August

October

The whole year,without the guesswork.

Saint Marys runs -0.3°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Saint Marys.

The whole year,
without the guesswork.

Saint Marys runs -0.3°C
on the 1961–1990 baseline.

Nearby, measured,
and named.