United States · 1991–2020

Best time to visit
Blue River.

September leads for comfortable weather in Blue River: typically 24.5°C by day, 10.3°C at night, with 88 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high24.5°C

Typical low10.3°C

Rain in September88 mm

Comfort

September

September · August · June

79climate match

Beach

July

July · August · June

69climate match

Outdoors

September

September · October · May

71climate match

The weakest month is January, scoring 5 against September’s 79 — days reach only -1.3°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

5-1.3° / -12°

Feb

50.8° / -10.7°

Mar

98.3° / -4°

Apr

3716.1° / 2.1°

May

6422.4° / 8.2°

Jun

6727.2° / 13.8°

Jul

6629.7° / 16.3°

Aug

7328.4° / 15°

Sep

7924.5° / 10.3°

Oct

4716.7° / 3.4°

Nov

169.1° / -2.3°

Dec

51.1° / -8.8°

Monthly climate evidence for Blue River — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-1.3°C	-12°C	24 mm	4.7	9 h 19	5	Good coverage
February	0.8°C	-10.7°C	26 mm	4.9	10 h 27	5	Good coverage
March	8.3°C	-4°C	47 mm	7.1	11 h 47	9	Good coverage
April	16.1°C	2.1°C	96 mm	8.5	13 h 20	37	Good coverage
May	22.4°C	8.2°C	115 mm	10.5	14 h 39	64	Good coverage
June	27.2°C	13.8°C	131 mm	10.3	15 h 22	67	Good coverage
July	29.7°C	16.3°C	96 mm	7.6	15 h 05	66	Good coverage
August	28.4°C	15°C	97 mm	7.3	13 h 57	73	Good coverage
September	24.5°C	10.3°C	88 mm	7.3	12 h 27	79	Good coverage
October	16.7°C	3.4°C	67 mm	6.8	10 h 57	47	Good coverage
November	9.1°C	-2.3°C	44 mm	5.5	9 h 39	16	Good coverage
December	1.1°C	-8.8°C	38 mm	5.9	9 h	5	Good coverage

Records at BOSCOBEL AP, 1999–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	16.1°C30 Jan 2025	-37.7°C31 Jan 2019	43 mm8 Jan 2026	52 mm2026 · driest 0 mm in 2025	27
February	23.3°C27 Feb 2024	-31.6°C10 Feb 2011	33 mm27 Feb 2023	51 mm2019 · driest 3 mm in 2022	28
March	29.4°C26 Mar 2007	-28.2°C3 Mar 2014	41 mm21 Mar 2007	99 mm2022 · driest 5 mm in 1999	28
April	32.8°C29 Apr 2007	-11.6°C8 Apr 2018	77 mm26 Apr 2009	226 mm2026 · driest 16 mm in 2021	28
May	36.7°C27 May 2018	-5.6°C3 May 2005	97 mm21 May 2004	256 mm2004 · driest 29 mm in 2023	28
June	36.7°C14 Jun 2022	2.8°C1 Jun 2015	192 mm22 Jun 2013	310 mm2013 · driest 25 mm in 2023	28
July	40.6°C6 Jul 2012	5.0°C2 Jul 2001	72 mm20 Jul 2017	198 mm2016 · driest 25 mm in 2001	28
August	40.6°C23 Aug 2023	3.9°C21 Aug 2004	111 mm10 Aug 2025	400 mm2007 · driest 1 mm in 2023	27
September	37.8°C3 Sep 2023	-2.1°C24 Sep 2012	105 mm12 Sep 2019	276 mm2019 · driest 1 mm in 2021	27
October	32.8°C9 Oct 2010	-7.2°C24 Oct 1999	86 mm22 Oct 2020	151 mm2019 · driest 16 mm in 2005	27
November	25.0°C2 Nov 2022	-18.8°C21 Nov 2014	51 mm3 Nov 2003	121 mm2024 · driest 4 mm in 2023	27
December	22.2°C15 Dec 2021	-33.9°C25 Dec 2000	52 mm13 Dec 2015	113 mm2015 · driest 8 mm in 2002	27

Typical days per month at BOSCOBEL AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	29	<1
February	0	0	27	<1
March	<1	0	24	1
April	3	<1	11	3
May	11	3	2	4
June	22	9	0	4
July	29	16	0	3
August	27	11	0	3
September	15	4	<1	3
October	4	<1	10	2
November	0	0	20	1
December	0	0	28	1

How often, not how much — every day in BOSCOBEL AP’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%	15%	2%	10%	-4.1–1.5°C
February	<1%	16%	2%	12%	-4.0–6.0°C
March	7%	23%	5%	22%	5.2–12.1°C
April	23%	30%	11%	35%	13.7–18.5°C
May	49%	32%	12%	43%	20.5–25.0°C
June	66%	33%	14%	43%	25.9–29.5°C
July	74%	25%	11%	26%	27.8–31.1°C
August	76%	24%	10%	25%	26.6–29.9°C
September	67%	23%	8%	26%	22.4–26.7°C
October	28%	21%	6%	19%	14.2–19.6°C
November	7%	18%	5%	13%	4.9–13.0°C
December	<1%	19%	3%	13%	-2.5–4.9°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.

2000Each stripe is one year’s mean temperature against the 26-year average. Warmest: 2024. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5246277
NOAA station: USW00094994 · BOSCOBEL AP
Station distance: 9.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 43.19°, 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 BOSCOBEL AP is what differs

Boscobel→Fennimore→Wauzeka→Castle Rock→Woodman→Boydtown→

Or put two places side by side: Blue River vs Boscobel

Best time to visitBlue River.

September

July

September

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Blue River.

The whole year,
without the guesswork.

Nearby, measured,
and named.