United States · 1991–2020

Best time to visit
Bison.

September leads for comfortable weather in Bison: typically 28.4°C by day, 12.1°C at night, with 49 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high28.4°C

Typical low12.1°C

Rain in September49 mm

Comfort

September

September · May · October

77climate match

Beach

September

September · August · June

70climate match

Outdoors

October

October · April · September

83climate match

The weakest month is January, scoring 5 against September’s 77 — days reach only 6.5°C, 17° below the 24°C the score treats as ideal, and nights drop to -8.8°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

56.5° / -8.8°

Feb

108.8° / -7°

Mar

3614.5° / -2°

Apr

5819.5° / 3.4°

May

7324.9° / 9.5°

Jun

6231.1° / 15.7°

Jul

4633.9° / 18.2°

Aug

5732.9° / 17.3°

Sep

7728.4° / 12.1°

Oct

7121.6° / 4.6°

Nov

3313.6° / -2.8°

Dec

56.8° / -7.5°

Monthly climate evidence for Bison — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6.5°C	-8.8°C	16 mm	2	9 h 45	5	Good coverage
February	8.8°C	-7°C	22 mm	2.7	10 h 42	10	Good coverage
March	14.5°C	-2°C	42 mm	4.3	11 h 50	36	Good coverage
April	19.5°C	3.4°C	65 mm	5.7	13 h 09	58	Good coverage
May	24.9°C	9.5°C	104 mm	8.1	14 h 15	73	Good coverage
June	31.1°C	15.7°C	102 mm	7.3	14 h 50	62	Good coverage
July	33.9°C	18.2°C	108 mm	8.7	14 h 36	46	Good coverage
August	32.9°C	17.3°C	82 mm	6.7	13 h 40	57	Good coverage
September	28.4°C	12.1°C	49 mm	4.2	12 h 23	77	Good coverage
October	21.6°C	4.6°C	43 mm	4.4	11 h 07	71	Good coverage
November	13.6°C	-2.8°C	15 mm	2.5	10 h 01	33	Good coverage
December	6.8°C	-7.5°C	24 mm	2.7	9 h 29	5	Good coverage

Records at BISON 3NW, 1923–2017
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	28.9°C28 Jan 2015	-30.6°C4 Jan 1947	38 mm30 Jan 1994	58 mm1979 · driest 0 mm in 1961	94
February	32.2°C19 Feb 2016	-31.1°C8 Feb 1933	58 mm27 Feb 1948	74 mm1971 · driest 0 mm in 1967	94
March	35.0°C31 Mar 1946	-30.6°C11 Mar 1948	70 mm24 Mar 1957	248 mm1973 · driest 0 mm in 1997	95
April	39.4°C23 Apr 1989	-14.4°C6 Apr 1936	85 mm14 Apr 1987	168 mm2017 · driest 3 mm in 1937	95
May	41.7°C23 May 1939	-6.1°C14 May 1953	95 mm26 May 2008	254 mm2008 · driest 5 mm in 1966	95
June	45.0°C28 Jun 2012	2.2°C7 Jun 1998	106 mm15 Jun 2004	276 mm2014 · driest 3 mm in 1952	95
July	46.7°C13 Jul 1934	6.1°C8 Jul 1952	95 mm21 Jul 1990	272 mm1958 · driest 1 mm in 2003	94
August	46.1°C13 Aug 1936	3.9°C24 Aug 1928	205 mm13 Aug 1927	303 mm1927 · driest 6 mm in 2000	93
September	44.4°C3 Sep 1947	-5.0°C23 Sep 1983	87 mm21 Sep 1959	220 mm1959 · driest 0 mm in 1998	93
October	37.8°C5 Oct 1947	-10.6°C30 Oct 1925	77 mm2 Oct 1950	137 mm2008 · driest 0 mm in 1952	94
November	33.9°C1 Nov 2016	-22.8°C22 Nov 1929	71 mm15 Nov 1996	116 mm1996 · driest 0 mm in 1954	93
December	28.3°C6 Dec 1939	-31.1°C23 Dec 1989	43 mm15 Dec 1984	87 mm1984 · driest 0 mm in 1934	94

Typical days per month at BISON 3NW, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	<1	0	30	<1	2
February	<1	<1	25	<1	2
March	3	<1	20	1	1
April	7	2	8	2	<1
May	16	7	1	3	0
June	26	18	0	3	0
July	29	24	0	4	0
August	27	22	0	3	0
September	22	13	<1	2	0
October	10	3	7	1	<1
November	2	<1	21	<1	<1
December	0	0	29	<1	2

How often, not how much — every day in BISON 3NW’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	3%	8%	1%	3%	1.8–10.0°C
February	9%	11%	2%	7%	3.5–13.9°C
March	24%	16%	4%	13%	9.7–18.5°C
April	48%	20%	6%	17%	17.2–22.9°C
May	64%	25%	10%	25%	22.4–28.0°C
June	74%	25%	11%	27%	28.4–34.0°C
July	78%	22%	9%	19%	31.8–37.4°C
August	78%	22%	8%	16%	30.9–36.9°C
September	79%	17%	6%	11%	26.2–31.8°C
October	62%	13%	5%	10%	19.0–25.2°C
November	19%	11%	3%	5%	10.2–16.8°C
December	3%	8%	2%	3%	3.9–10.6°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.

1924Each stripe is one year’s mean temperature against the 90-year average. Warmest: 1954. Coolest: 2008.2016

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4268347
NOAA station: USC00140865 · BISON 3NW
Station distance: 5.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 19 usable years
Daylight: Calculated from latitude 38.52°, 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 BISON 3NW is what differs

La Crosse→Otis→Rush Center→Liebenthal→Timken→Alexander→

Or put two places side by side: Bison vs La Crosse

Best time to visitBison.

September

September

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Bison.

The whole year,
without the guesswork.

Nearby, measured,
and named.