United States · 1991–2020

Best time to visit
Hornsby.

October leads for comfortable weather in Hornsby: typically 22.9°C by day, 9°C at night, with 100 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high22.9°C

Typical low9°C

Rain in October100 mm

Comfort

October

October · September · May

74climate match

Beach

August

August · July · June

76climate match

Outdoors

October

October · April · November

75climate match

The weakest month is January, scoring 7 against October’s 74 — days reach only 9.5°C, 14° below the 24°C the score treats as ideal, and nights drop to -1.4°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

79.5° / -1.4°

Feb

1612° / 0.3°

Mar

3617° / 4.3°

Apr

6322.2° / 9°

May

7126.3° / 14.3°

Jun

5730.3° / 18.8°

Jul

4831.9° / 20.9°

Aug

5531.7° / 19.8°

Sep

7228.6° / 15.7°

Oct

7422.9° / 9°

Nov

3916.3° / 3.3°

Dec

1011° / 0.1°

Monthly climate evidence for Hornsby — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	9.5°C	-1.4°C	109 mm	8.6	10 h 01	7	Strong coverage
February	12°C	0.3°C	125 mm	8.4	10 h 51	16	Strong coverage
March	17°C	4.3°C	146 mm	9.9	11 h 52	36	Strong coverage
April	22.2°C	9°C	143 mm	8.8	13 h 02	63	Strong coverage
May	26.3°C	14.3°C	135 mm	9.4	14 h	71	Strong coverage
June	30.3°C	18.8°C	121 mm	7.4	14 h 31	57	Strong coverage
July	31.9°C	20.9°C	111 mm	7.7	14 h 19	48	Strong coverage
August	31.7°C	19.8°C	86 mm	6.7	13 h 29	55	Strong coverage
September	28.6°C	15.7°C	99 mm	5.8	12 h 21	72	Strong coverage
October	22.9°C	9°C	100 mm	6	11 h 14	74	Strong coverage
November	16.3°C	3.3°C	108 mm	7.3	10 h 16	39	Strong coverage
December	11°C	0.1°C	139 mm	9.1	9 h 48	10	Strong coverage

What has changed

Hornsby 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

+1.0

Feb

+1.2

Mar

+1.0

Apr

-0.3

May

-0.3

Jun

+0.1

Jul

-0.2

Aug

-0.4

Sep

+0.6

Oct

+0.4

Nov

-0.1

Dec

+1.6

October daytime highs, 2011–2025. Last recorded: 23.6°C.

Records at BOLIVAR WTR WKS, 1894–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.7°C24 Jan 1943	-25.6°C18 Jan 1948	212 mm20 Jan 1935	400 mm1935 · driest 9 mm in 1963	127
February	29.4°C10 Feb 1954	-27.8°C2 Feb 1951	102 mm3 Feb 1990	348 mm2018 · driest 14 mm in 1978	126
March	32.8°C24 Mar 1929	-14.4°C5 Mar 1917	180 mm17 Mar 1919	344 mm1975 · driest 6 mm in 1910	126
April	33.3°C22 Apr 1987	-4.4°C8 Apr 2007	136 mm1 Apr 1920	330 mm2011 · driest 25 mm in 1906	126
May	37.2°C30 May 1926	0.0°C18 May 1895	176 mm2 May 2010	304 mm2010 · driest 10 mm in 1921	127
June	41.1°C19 Jun 1936	4.4°C16 Jun 1917	98 mm15 Jun 1949	331 mm1900 · driest 0 mm in 1988	126
July	42.8°C29 Jul 1930	9.4°C15 Jul 1926	121 mm5 Jul 1967	270 mm1955 · driest 12 mm in 1943	124
August	42.8°C7 Aug 1934	5.6°C31 Aug 1946	127 mm7 Aug 1931	247 mm1931 · driest 4 mm in 1999	123
September	39.4°C4 Sep 1954	-2.2°C29 Sep 1942	177 mm27 Sep 2002	339 mm1958 · driest 0 mm in 2019	123
October	36.1°C3 Oct 2019	-6.7°C29 Oct 1952	127 mm23 Oct 1935	303 mm1905 · driest 0 mm in 1963	125
November	30.6°C2 Nov 1961	-16.7°C25 Nov 1950	141 mm19 Nov 1948	380 mm1906 · driest 0 mm in 1953	126
December	27.2°C31 Dec 1951	-21.7°C22 Dec 1989	128 mm4 Dec 1978	315 mm1982 · driest 28 mm in 1896	126

Typical days per month at BOLIVAR WTR WKS, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	20	4	<1
February	<1	0	16	4	<1
March	4	<1	8	5	<1
April	11	1	1	5	0
May	21	7	0	4	0
June	29	18	0	3	0
July	30	25	0	4	0
August	31	24	0	3	0
September	25	13	0	3	0
October	13	2	1	3	0
November	2	<1	10	3	<1
December	0	0	18	5	<1

How often, not how much — every day in BOLIVAR WTR WKS’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%	28%	13%	30%	6.3–12.9°C
February	9%	30%	14%	34%	7.9–15.9°C
March	28%	30%	15%	33%	13.4–20.6°C
April	52%	28%	14%	30%	20.1–24.7°C
May	68%	28%	13%	32%	24.6–28.9°C
June	76%	24%	10%	25%	29.2–32.9°C
July	76%	24%	11%	24%	30.7–34.8°C
August	79%	21%	9%	21%	30.3–34.4°C
September	78%	20%	9%	17%	26.8–31.5°C
October	64%	18%	9%	16%	21.1–26.1°C
November	25%	23%	12%	23%	14.0–19.1°C
December	5%	28%	15%	31%	8.0–13.8°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.

1897Each stripe is one year’s mean temperature against the 111-year average. Warmest: 1998. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4630750
NOAA station: USC00400876 · BOLIVAR WTR WKS
Station distance: 15.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 35.23°, 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 BOLIVAR WTR WKS is what differs

Bolivar→Whiteville→Middleton→Toone→Hatchie→Hebron→

Or put two places side by side: Hornsby vs Bolivar

Best time to visitHornsby.

October

August

October

The whole year,without the guesswork.

Hornsby runs +0.4°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Hornsby.

The whole year,
without the guesswork.

Hornsby runs +0.4°C
on the 1961–1990 baseline.

Nearby, measured,
and named.