United States · 1991–2020

Best time to visit
Jacks.

September leads for comfortable weather in Jacks: typically 29.4°C by day, 15.5°C at night, with 56 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high29.4°C

Typical low15.5°C

Rain in September56 mm

Comfort

September

September · October · May

77climate match

Beach

September

September · July · August

78climate match

Outdoors

October

October · April · November

80climate match

The weakest month is January, scoring 15 against September’s 77 — days reach only 8.5°C, 15° below the 24°C the score treats as ideal, and nights drop to -4°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

158.5° / -4°

Feb

2611.2° / -1.9°

Mar

4516.1° / 2.5°

Apr

6721.4° / 7.2°

May

7326.3° / 13.3°

Jun

5131.9° / 18.6°

Jul

4435.3° / 21.3°

Aug

4534.7° / 20.6°

Sep

7729.4° / 15.5°

Oct

7722.8° / 9.1°

Nov

4515° / 2.4°

Dec

169° / -2.7°

Monthly climate evidence for Jacks — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	8.5°C	-4°C	31 mm	3.3	9 h 57	15	Good coverage
February	11.2°C	-1.9°C	37 mm	3.7	10 h 49	26	Good coverage
March	16.1°C	2.5°C	68 mm	5.5	11 h 51	45	Good coverage
April	21.4°C	7.2°C	86 mm	6.1	13 h 03	67	Good coverage
May	26.3°C	13.3°C	121 mm	7.9	14 h 03	73	Good coverage
June	31.9°C	18.6°C	123 mm	7.2	14 h 36	51	Good coverage
July	35.3°C	21.3°C	71 mm	5.1	14 h 23	44	Good coverage
August	34.7°C	20.6°C	89 mm	5.7	13 h 31	45	Good coverage
September	29.4°C	15.5°C	56 mm	4.5	12 h 22	77	Good coverage
October	22.8°C	9.1°C	79 mm	5.4	11 h 12	77	Good coverage
November	15°C	2.4°C	51 mm	4.1	10 h 12	45	Good coverage
December	9°C	-2.7°C	45 mm	4.5	9 h 43	16	Good coverage

Records at HENNESSEY 4 ESE, 1895–2012
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	27.2°C22 Jan 1943	-26.1°C18 Jan 1930	53 mm10 Jan 1949	161 mm1949 · driest 0 mm in 1976	98
February	31.1°C22 Feb 1996	-28.9°C11 Feb 2011	75 mm9 Feb 1898	125 mm1915 · driest 0 mm in 1920	101
March	35.0°C31 Mar 1940	-18.3°C3 Mar 1960	131 mm5 Mar 2004	207 mm2004 · driest 0 mm in 1971	99
April	38.9°C12 Apr 1972	-8.9°C3 Apr 1936	76 mm19 Apr 1942	222 mm1994 · driest 2 mm in 1989	100
May	40.0°C30 May 1985	-0.6°C3 May 1954	248 mm15 May 1957	569 mm1957 · driest 8 mm in 1962	101
June	44.4°C15 Jun 1953	7.2°C2 Jun 1917	116 mm21 Jun 1948	330 mm2007 · driest 6 mm in 1933	100
July	45.6°C14 Jul 1954	10.6°C4 Jul 1968	101 mm7 Jul 1982	250 mm1950 · driest 0 mm in 1916	101
August	46.7°C24 Aug 1922	7.2°C31 Aug 1915	127 mm17 Aug 1932	238 mm1974 · driest 0 mm in 2000	100
September	43.3°C3 Sep 1947	0.0°C30 Sep 1984	163 mm13 Sep 1961	250 mm1986 · driest 0 mm in 2000	100
October	37.2°C4 Oct 1931	-10.0°C31 Oct 1993	126 mm3 Oct 1986	284 mm1941 · driest 0 mm in 1952	99
November	31.7°C6 Nov 1945	-13.3°C3 Nov 1991	105 mm20 Nov 1994	146 mm1974 · driest 0 mm in 1955	100
December	29.4°C24 Dec 1955	-25.0°C23 Dec 1989	76 mm18 Dec 1898	144 mm1932 · driest 0 mm in 1925	101

Typical days per month at HENNESSEY 4 ESE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	25	1	1
February	<1	0	19	1	<1
March	3	<1	10	2	<1
April	9	<1	3	3	0
May	19	7	0	3	0
June	28	21	0	4	0
July	30	28	0	2	0
August	29	26	0	3	0
September	24	14	0	2	0
October	12	3	1	2	0
November	1	0	11	2	<1
December	0	0	23	2	1

How often, not how much — every day in HENNESSEY 4 ESE’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	5%	11%	3%	6%	5.1–12.1°C
February	14%	13%	3%	8%	7.8–16.0°C
March	34%	16%	6%	12%	13.1–20.2°C
April	59%	19%	8%	17%	19.5–25.7°C
May	72%	24%	11%	25%	24.3–29.2°C
June	78%	22%	11%	20%	29.3–34.8°C
July	84%	16%	7%	11%	33.4–37.7°C
August	84%	16%	7%	14%	32.3–38.1°C
September	81%	17%	8%	14%	27.4–33.8°C
October	69%	16%	7%	14%	20.9–27.1°C
November	28%	13%	5%	9%	12.3–18.7°C
December	6%	11%	3%	8%	6.3–12.9°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.

1921Each stripe is one year’s mean temperature against the 82-year average. Warmest: 1946. Coolest: 2009.2011

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4539496
NOAA station: USC00344055 · HENNESSEY 4 ESE
Station distance: 8.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 36.04°, 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 HENNESSEY 4 ESE is what differs

Hennessey→Bison→Union→Cato→Buffalo Springs Stage Station (historical)→

Or put two places side by side: Jacks vs Hennessey

Best time to visitJacks.

September

September

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Jacks.

The whole year,
without the guesswork.

Nearby, measured,
and named.