United States · 1991–2020

Best time to visit
Trimble.

September leads for comfortable weather in Trimble: typically 28.1°C by day, 14.5°C at night, with 93 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high28.1°C

Typical low14.5°C

Rain in September93 mm

Comfort

September

September · May · October

75climate match

Beach

August

August · July · June

75climate match

Outdoors

October

October · April · September

74climate match

The weakest month is January, scoring 5 against September’s 75 — days reach only 6.9°C, 17° 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

56.9° / -2.9°

Feb

79.6° / -1.3°

Mar

2814.8° / 3°

Apr

5720.7° / 8°

May

7225.6° / 14°

Jun

5929.9° / 18.7°

Jul

5231.4° / 20.4°

Aug

6031.1° / 18.8°

Sep

7528.1° / 14.5°

Oct

6822.1° / 7.7°

Nov

3214.7° / 2.4°

Dec

58.9° / -1.1°

Monthly climate evidence for Trimble — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6.9°C	-2.9°C	101 mm	8.6	9 h 57	5	Strong coverage
February	9.6°C	-1.3°C	118 mm	8.2	10 h 48	7	Strong coverage
March	14.8°C	3°C	134 mm	9.6	11 h 51	28	Strong coverage
April	20.7°C	8°C	133 mm	9.6	13 h 04	57	Strong coverage
May	25.6°C	14°C	141 mm	10.1	14 h 04	72	Strong coverage
June	29.9°C	18.7°C	113 mm	8	14 h 36	59	Strong coverage
July	31.4°C	20.4°C	104 mm	7.4	14 h 24	52	Strong coverage
August	31.1°C	18.8°C	82 mm	6.8	13 h 32	60	Strong coverage
September	28.1°C	14.5°C	93 mm	5.8	12 h 22	75	Strong coverage
October	22.1°C	7.7°C	99 mm	6.8	11 h 12	68	Strong coverage
November	14.7°C	2.4°C	112 mm	7.7	10 h 12	32	Strong coverage
December	8.9°C	-1.1°C	131 mm	8.8	9 h 42	5	Strong coverage

What has changed

Trimble runs +0.4°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

+0.9

Feb

+1.2

Mar

+0.9

Apr

+0.1

May

+0.3

Jun

+0.4

Jul

-0.2

Aug

-0.6

Sep

+0.7

Oct

+0.5

Nov

-0.5

Dec

+1.7

September daytime highs, 2011–2025. Last recorded: 30.3°C.

Records at UNION CITY, 1895–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.6°C26 Jan 1950	-30.0°C9 Jan 1942	145 mm6 Jan 1913	473 mm1913 · driest 19 mm in 2026	127
February	27.2°C14 Feb 1962	-28.3°C2 Feb 1951	105 mm18 Feb 1976	353 mm2019 · driest 13 mm in 1947	125
March	32.8°C24 Mar 1929	-21.7°C6 Mar 1960	135 mm12 Mar 1975	402 mm1975 · driest 14 mm in 1966	130
April	33.9°C25 Apr 1902	-5.6°C10 Apr 1960	103 mm11 Apr 1933	305 mm1912 · driest 19 mm in 1915	128
May	37.8°C28 May 1911	0.0°C4 May 1954	137 mm5 May 1923	293 mm2003 · driest 18 mm in 1911	129
June	41.1°C25 Jun 1914	6.1°C16 Jun 1917	145 mm14 Jun 1970	347 mm1970 · driest 5 mm in 1899	128
July	42.8°C25 Jul 1934	7.2°C23 Jul 1947	122 mm20 Jul 1975	299 mm1933 · driest 6 mm in 1942	127
August	43.9°C10 Aug 1930	6.7°C31 Aug 1946	264 mm3 Aug 2023	403 mm2023 · driest 0 mm in 2025	127
September	42.2°C5 Sep 1925	0.6°C23 Sep 1953	127 mm20 Sep 1932	239 mm1932 · driest 0 mm in 1897	126
October	37.2°C2 Oct 1911	-9.4°C29 Oct 1952	125 mm9 Oct 1999	350 mm1984 · driest 0 mm in 1963	125
November	30.0°C14 Nov 1955	-17.2°C25 Nov 1950	142 mm19 Nov 1988	375 mm1957 · driest 14 mm in 1910	126
December	25.6°C3 Dec 1982	-25.0°C10 Dec 1917	112 mm5 Dec 2011	323 mm1990 · driest 21 mm in 1912	128

Typical days per month at UNION CITY, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	22	3	2
February	0	0	18	4	1
March	2	0	11	4	<1
April	8	<1	2	4	0
May	19	6	0	4	0
June	28	17	0	4	0
July	30	23	0	4	0
August	30	21	0	3	0
September	24	12	0	3	0
October	12	2	2	3	0
November	1	0	12	3	<1
December	0	0	20	4	<1

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

How often, not how much — every day in UNION CITY’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%	28%	12%	33%	4.1–10.9°C
February	6%	29%	12%	33%	5.5–13.5°C
March	19%	31%	14%	38%	11.5–19.4°C
April	43%	30%	13%	37%	18.5–23.5°C
May	64%	30%	13%	35%	23.7–28.4°C
June	75%	25%	11%	26%	28.5–33.0°C
July	77%	23%	10%	21%	30.3–34.6°C
August	79%	21%	9%	20%	29.6–34.3°C
September	78%	20%	9%	17%	26.3–31.7°C
October	58%	20%	9%	21%	20.5–25.5°C
November	19%	25%	12%	25%	12.4–18.1°C
December	3%	27%	13%	31%	6.3–12.5°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.

1896Each stripe is one year’s mean temperature against the 111-year average. Warmest: 1921. Coolest: 1960.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4663258
NOAA station: USC00409219 · UNION CITY
Station distance: 25.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 36.20°, 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 CITY is what differs

Union City→Englewood→Troy→Kenton→Obion→Woodland Mills→

Or put two places side by side: Trimble vs Union City

Best time to visitTrimble.