United States · 1991–2020

Best time to visit
Union.

June leads for comfortable weather in Union: typically 23.4°C by day, 8°C at night, with 38 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high23.4°C

Typical low8°C

Rain in June38 mm

Comfort

June

June · September · July

81climate match

Beach

July

July · August · September

68climate match

Outdoors

June

June · May · September

80climate match

The weakest month is January, scoring 5 against June’s 81 — days reach only 4°C, 20° 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

54° / -3.6°

Feb

107° / -2.5°

Mar

2611.4° / -0.7°

Apr

3814.7° / 1.3°

May

5719.5° / 5.1°

Jun

8123.4° / 8°

Jul

7329.8° / 10.5°

Aug

7030.1° / 9.7°

Sep

7925.1° / 5.6°

Oct

5017.1° / 1.3°

Nov

158.7° / -0.9°

Dec

54° / -3.6°

Monthly climate evidence for Union — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	4°C	-3.6°C	32 mm	7.1	9 h 06	5	Good coverage
February	7°C	-2.5°C	23 mm	5.1	10 h 19	10	Good coverage
March	11.4°C	-0.7°C	30 mm	7.2	11 h 46	26	Good coverage
April	14.7°C	1.3°C	44 mm	9.3	13 h 26	38	Good coverage
May	19.5°C	5.1°C	64 mm	9.9	14 h 50	57	Good coverage
June	23.4°C	8°C	38 mm	7.2	15 h 37	81	Good coverage
July	29.8°C	10.5°C	11 mm	2.3	15 h 19	73	Good coverage
August	30.1°C	9.7°C	14 mm	2.5	14 h 05	70	Good coverage
September	25.1°C	5.6°C	15 mm	3.2	12 h 28	79	Good coverage
October	17.1°C	1.3°C	28 mm	6	10 h 52	50	Good coverage
November	8.7°C	-0.9°C	38 mm	8.8	9 h 27	15	Good coverage
December	4°C	-3.6°C	29 mm	8.1	8 h 46	5	Good coverage

Records at UNION, 1911–2011
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	16.1°C9 Jan 1953	-32.8°C18 Jan 1943	37 mm28 Jan 1965	91 mm1965 · driest 5 mm in 1949	100
February	19.4°C26 Feb 1950	-29.4°C9 Feb 1933	32 mm23 Feb 1986	77 mm1986 · driest 2 mm in 1920	99
March	25.0°C26 Mar 1960	-19.4°C2 Mar 1917	26 mm24 Mar 2002	81 mm1932 · driest 5 mm in 1965	99
April	32.2°C25 Apr 1977	-12.8°C1 Apr 1936	28 mm6 Apr 1969	94 mm1978 · driest 3 mm in 1939	99
May	35.0°C24 May 2001	-6.7°C1 May 1954	48 mm8 May 1952	164 mm1998 · driest 4 mm in 1918	99
June	38.3°C30 Jun 1924	-1.7°C10 Jun 1916	44 mm26 Jun 1934	103 mm1958 · driest 3 mm in 1919	99
July	40.6°C6 Jul 2007	0.0°C14 Jul 1913	27 mm1 Jul 1982	73 mm1982 · driest 0 mm in 1961	98
August	42.2°C5 Aug 1961	-2.2°C30 Aug 1912	40 mm31 Aug 1984	85 mm1965 · driest 0 mm in 1970	97
September	38.3°C2 Sep 1950	-7.8°C24 Sep 1926	51 mm23 Sep 1917	106 mm1927 · driest 0 mm in 1943	98
October	31.7°C2 Oct 2008	-13.9°C31 Oct 2002	38 mm7 Oct 1930	83 mm1923 · driest 0 mm in 1987	100
November	23.3°C13 Nov 1999	-24.4°C15 Nov 1955	34 mm28 Nov 1995	92 mm1995 · driest 0 mm in 1936	100
December	16.7°C14 Dec 1929	-31.1°C17 Dec 1964	31 mm28 Dec 1917	99 mm1917 · driest 2 mm in 1965	100

Typical days per month at UNION, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	24	<1	5
February	0	0	20	<1	3
March	0	0	19	<1	2
April	1	0	12	<1	<1
May	6	1	3	2	<1
June	12	4	<1	1	0
July	25	17	0	<1	0
August	26	18	<1	<1	0
September	17	7	2	<1	0
October	3	<1	12	<1	<1
November	0	0	17	<1	2
December	0	0	24	<1	5

How often, not how much — every day in UNION’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%	23%	1%	25%	-0.6–5.7°C
February	0%	23%	1%	23%	1.8–9.0°C
March	4%	26%	2%	28%	8.0–13.8°C
April	20%	26%	2%	30%	12.5–18.2°C
May	41%	26%	4%	30%	16.8–22.2°C
June	64%	23%	4%	24%	21.2–25.8°C
July	89%	9%	<1%	5%	26.8–30.9°C
August	88%	10%	2%	7%	26.3–31.3°C
September	69%	14%	2%	12%	20.1–26.5°C
October	29%	19%	2%	20%	14.2–19.4°C
November	<1%	27%	2%	31%	6.0–11.2°C
December	0%	25%	2%	27%	0.3–6.3°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.

1912Each stripe is one year’s mean temperature against the 97-year average. Warmest: 1934. Coolest: 1985.2010

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5758113
NOAA station: USC00358746 · UNION
Station distance: 1.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 45.21°, 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 UNION is what differs

Hot Lake→Telocaset→

Or put two places side by side: Union vs Hot Lake

Best time to visitUnion.

June

July

June

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Union.

The whole year,
without the guesswork.

Nearby, measured,
and named.