United States · 1991–2020

Best time to visit
Bass.

September leads for comfortable weather in Bass: typically 26.6°C by day, 14.5°C at night, with 106 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.6°C

Typical low14.5°C

Rain in September106 mm

Comfort

September

September · May · June

78climate match

Beach

July

July · August · June

74climate match

Outdoors

October

October · April · May

81climate match

The weakest month is January, scoring 5 against September’s 78 — days reach only 4.2°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

54.2° / -6.1°

Feb

57.3° / -4.1°

Mar

2713° / 1°

Apr

5119.2° / 6.6°

May

7624° / 12.6°

Jun

6428.8° / 18°

Jul

5231.1° / 20.3°

Aug

5730.7° / 19.2°

Sep

7826.6° / 14.5°

Oct

6420.4° / 7.7°

Nov

2812.7° / 1.4°

Dec

56.5° / -3.6°

Monthly climate evidence for Bass — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	4.2°C	-6.1°C	58 mm	5.6	9 h 45	5	Strong coverage
February	7.3°C	-4.1°C	59 mm	5.6	10 h 42	5	Strong coverage
March	13°C	1°C	80 mm	8.6	11 h 50	27	Strong coverage
April	19.2°C	6.6°C	122 mm	9.5	13 h 09	51	Strong coverage
May	24°C	12.6°C	131 mm	10	14 h 14	76	Strong coverage
June	28.8°C	18°C	107 mm	8.3	14 h 50	64	Strong coverage
July	31.1°C	20.3°C	111 mm	7.2	14 h 36	52	Strong coverage
August	30.7°C	19.2°C	104 mm	6.8	13 h 39	57	Strong coverage
September	26.6°C	14.5°C	106 mm	6.2	12 h 23	78	Strong coverage
October	20.4°C	7.7°C	88 mm	7.2	11 h 08	64	Strong coverage
November	12.7°C	1.4°C	82 mm	6.9	10 h 02	28	Strong coverage
December	6.5°C	-3.6°C	59 mm	6	9 h 30	5	Strong coverage

What has changed

Bass runs -0.3°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

-0.1

Feb

-0.3

Mar

0.0

Apr

-1.0

May

-0.8

Jun

+0.2

Jul

-1.0

Aug

-1.3

Sep

+0.3

Oct

-0.3

Nov

-0.4

Dec

+1.6

September daytime highs, 2011–2025. Last recorded: 29.6°C.

Records at JEFFERSON CITY WTP, 1893–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.1°C23 Jan 1967	-30.6°C7 Jan 1912	102 mm2 Jan 1897	199 mm1897 · driest 1 mm in 1970	133
February	31.7°C24 Feb 1930	-31.7°C12 Feb 1899	71 mm18 Feb 2000	133 mm1985 · driest 0 mm in 1987	134
March	36.1°C24 Mar 1929	-26.7°C5 Mar 1960	102 mm10 Mar 1922	292 mm1922 · driest 7 mm in 1910	130
April	35.6°C4 Apr 1929	-10.6°C5 Apr 1920	111 mm30 Apr 2017	353 mm1922 · driest 18 mm in 2000	130
May	38.9°C31 May 1934	-4.4°C2 May 1961	108 mm18 May 1943	273 mm1943 · driest 17 mm in 1901	129
June	40.6°C28 Jun 1934	3.3°C1 Jun 1972	108 mm26 Jun 2021	285 mm1998 · driest 5 mm in 1936	131
July	45.6°C12 Jul 1901	5.6°C14 Jul 1967	188 mm7 Jul 1993	340 mm1993 · driest 6 mm in 1975	130
August	43.9°C9 Aug 1934	5.0°C21 Aug 1950	141 mm12 Aug 1993	314 mm1946 · driest 2 mm in 1973	129
September	41.7°C3 Sep 1939	-1.7°C30 Sep 1899	145 mm17 Sep 1905	326 mm1993 · driest 1 mm in 1940	130
October	35.6°C7 Oct 1939	-10.0°C7 Oct 1987	144 mm5 Oct 1941	359 mm1941 · driest 6 mm in 1952	128
November	31.1°C1 Nov 1915	-17.2°C25 Nov 1950	116 mm2 Nov 1948	251 mm1992 · driest 4 mm in 1904	129
December	26.1°C11 Dec 1949	-31.1°C20 Dec 1901	191 mm20 Dec 1895	234 mm1895 · driest 0 mm in 2025	132

Typical days per month at JEFFERSON CITY WTP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	2	2
February	<1	0	22	2	1
March	3	0	14	3	<1
April	6	<1	3	4	0
May	15	4	0	5	0
June	25	13	0	3	0
July	29	20	0	3	0
August	29	18	0	3	0
September	19	8	0	3	0
October	8	1	2	3	0
November	<1	0	13	3	<1
December	<1	0	23	2	1

How often, not how much — every day in JEFFERSON CITY WTP’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%	17%	5%	14%	1.4–8.9°C
February	5%	19%	5%	16%	2.9–11.4°C
March	19%	25%	9%	29%	9.1–17.9°C
April	39%	30%	12%	37%	17.2–22.9°C
May	59%	32%	14%	41%	22.1–27.5°C
June	70%	29%	12%	33%	27.1–31.6°C
July	78%	22%	9%	20%	29.8–34.2°C
August	78%	22%	10%	22%	29.4–33.9°C
September	74%	22%	11%	21%	25.0–29.8°C
October	51%	22%	9%	23%	18.9–24.1°C
November	17%	20%	8%	17%	10.0–16.7°C
December	3%	18%	6%	15%	3.7–10.4°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.

1893Each stripe is one year’s mean temperature against the 117-year average. Warmest: 2012. Coolest: 1912.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4375928
NOAA station: USC00234271 · JEFFERSON CITY WTP
Station distance: 21 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 38.43°, 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 JEFFERSON CITY WTP is what differs

Jefferson City→Wardsville→Saint Martins→Saint Thomas→Lohman→Apache Flats→

Or put two places side by side: Bass vs Jefferson City

Best time to visitBass.