United States · 1991–2020

Best time to visit
Republic.

September leads for comfortable weather in Republic: typically 27.3°C by day, 13.9°C at night, with 116 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high27.3°C

Typical low13.9°C

Rain in September116 mm

Comfort

September

September · May · June

73climate match

Beach

July

July · August · June

71climate match

Outdoors

October

October · April · May

78climate match

The weakest month is January, scoring 5 against September’s 73 — days reach only 6.2°C, 18° below the 24°C the score treats as ideal, and nights drop to -5.8°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

56.2° / -5.8°

Feb

119.1° / -3.9°

Mar

2814.3° / 0.6°

Apr

5419.7° / 5.7°

May

7123.9° / 11.7°

Jun

6528.7° / 16.7°

Jul

5531.2° / 19.1°

Aug

5931.1° / 18.1°

Sep

7327.3° / 13.9°

Oct

6120.4° / 6.8°

Nov

2813.7° / 0.7°

Dec

68° / -3.8°

Monthly climate evidence for Republic — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6.2°C	-5.8°C	69 mm	6.4	9 h 52	5	Strong coverage
February	9.1°C	-3.9°C	60 mm	5.8	10 h 46	11	Strong coverage
March	14.3°C	0.6°C	100 mm	8.3	11 h 51	28	Strong coverage
April	19.7°C	5.7°C	110 mm	8.3	13 h 06	54	Strong coverage
May	23.9°C	11.7°C	150 mm	10.1	14 h 08	71	Strong coverage
June	28.7°C	16.7°C	116 mm	8.3	14 h 42	65	Strong coverage
July	31.2°C	19.1°C	103 mm	7.1	14 h 29	55	Strong coverage
August	31.1°C	18.1°C	97 mm	6.4	13 h 35	59	Strong coverage
September	27.3°C	13.9°C	116 mm	6.5	12 h 22	73	Strong coverage
October	20.4°C	6.8°C	95 mm	7.1	11 h 10	61	Strong coverage
November	13.7°C	0.7°C	95 mm	7	10 h 08	28	Strong coverage
December	8°C	-3.8°C	72 mm	5.8	9 h 37	6	Strong coverage

What has changed

Republic runs +1.0°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

+1.6

Feb

+1.3

Mar

+1.9

Apr

+0.1

May

+0.3

Jun

+1.4

Jul

+0.5

Aug

-0.1

Sep

+1.0

Oct

+0.9

Nov

+0.9

Dec

+2.6

September daytime highs, 2011–2025. Last recorded: 29.0°C.

Records at BILLINGS 1SW, 1962–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.8°C28 Jan 2013	-27.2°C20 Jan 1985	85 mm5 Jan 2005	167 mm2005 · driest 1 mm in 1986	63
February	28.3°C24 Feb 2017	-28.9°C16 Feb 2021	74 mm24 Feb 2018	219 mm2018 · driest 0 mm in 2006	62
March	32.2°C27 Mar 2026	-18.3°C3 Mar 2014	122 mm18 Mar 2008	305 mm2008 · driest 19 mm in 2001	62
April	35.0°C18 Apr 2006	-9.4°C8 Apr 2007	100 mm30 Apr 2017	348 mm2017 · driest 3 mm in 1989	61
May	34.4°C26 May 2012	-1.7°C3 May 1976	102 mm20 May 1979	381 mm2019 · driest 36 mm in 2005	61
June	39.4°C27 Jun 2012	5.0°C1 Jun 1972	94 mm11 Jun 1981	348 mm2008 · driest 30 mm in 2006	62
July	42.8°C31 Jul 1986	8.3°C5 Jul 1997	89 mm30 Jul 2013	250 mm2015 · driest 8 mm in 1980	62
August	42.8°C2 Aug 2011	6.7°C31 Aug 2009	182 mm13 Aug 1982	334 mm1982 · driest 10 mm in 1984	62
September	40.0°C13 Sep 2011	1.7°C21 Sep 1983	190 mm25 Sep 1993	461 mm1993 · driest 2 mm in 1976	60
October	34.4°C10 Oct 1980	-8.3°C31 Oct 1993	135 mm8 Oct 2009	327 mm2009 · driest 2 mm in 1963	61
November	30.0°C9 Nov 2006	-16.1°C29 Nov 1976	121 mm25 Nov 1987	255 mm1985 · driest 4 mm in 1989	62
December	25.6°C26 Dec 2025	-26.1°C23 Dec 1989	189 mm27 Dec 2015	337 mm2015 · driest 3 mm in 2025	63

Typical days per month at BILLINGS 1SW, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	26	2	2
February	<1	0	22	2	2
March	2	0	15	3	<1
April	7	<1	5	4	<1
May	15	3	<1	5	0
June	26	13	0	3	0
July	30	21	0	3	0
August	29	20	0	3	0
September	20	9	0	3	0
October	8	1	3	3	0
November	<1	0	14	3	<1
December	0	0	24	3	1

The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 83); on 2011–2025 it is September (78). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in BILLINGS 1SW’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	2%	19%	6%	15%	2.3–9.7°C
February	7%	21%	6%	20%	5.0–12.2°C
March	20%	26%	12%	29%	10.4–17.4°C
April	40%	28%	13%	32%	17.3–22.5°C
May	58%	32%	15%	40%	21.7–26.0°C
June	72%	28%	12%	31%	26.4–30.9°C
July	79%	21%	9%	17%	29.8–34.1°C
August	79%	21%	9%	20%	29.3–33.7°C
September	74%	22%	11%	21%	24.7–29.8°C
October	47%	23%	10%	26%	18.1–23.0°C
November	18%	22%	10%	19%	10.3–16.7°C
December	4%	19%	8%	15%	5.3–10.9°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.

1963Each stripe is one year’s mean temperature against the 56-year average. Warmest: 2012. Coolest: 1993.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4405434
NOAA station: USC00230657 · BILLINGS 1SW
Station distance: 11.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude 37.12°, 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 BILLINGS 1SW is what differs

Aurora→Clever→Marionville→Billings→Chesapeake→Boaz→

Or put two places side by side: Republic vs Aurora

Best time to visitRepublic.