United States · 1991–2020

Best time to visit
Polo.

September leads for comfortable weather in Polo: typically 25.7°C by day, 11.5°C at night, with 108 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.7°C

Typical low11.5°C

Rain in September108 mm

Comfort

September

September · June · May

74climate match

Beach

July

July · August · June

71climate match

Outdoors

October

October · April · May

75climate match

The weakest month is January, scoring 5 against September’s 74 — days reach only 2°C, 22° below the 24°C the score treats as ideal, and nights drop to -9.8°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

52° / -9.8°

Feb

54.9° / -7.7°

Mar

2011.4° / -2.1°

Apr

4417.6° / 3.6°

May

6623° / 10.1°

Jun

6728.1° / 15.7°

Jul

6030.6° / 18.1°

Aug

6429.9° / 16.8°

Sep

7425.7° / 11.5°

Oct

5419° / 4.6°

Nov

2211.1° / -1.7°

Dec

54.5° / -7.3°

Monthly climate evidence for Polo — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	2°C	-9.8°C	27 mm	4.3	9 h 39	5	Strong coverage
February	4.9°C	-7.7°C	41 mm	4.6	10 h 39	5	Strong coverage
March	11.4°C	-2.1°C	71 mm	6.5	11 h 49	20	Strong coverage
April	17.6°C	3.6°C	101 mm	8.7	13 h 11	44	Strong coverage
May	23°C	10.1°C	150 mm	9.8	14 h 20	66	Strong coverage
June	28.1°C	15.7°C	126 mm	8.6	14 h 57	67	Strong coverage
July	30.6°C	18.1°C	98 mm	7.3	14 h 42	60	Strong coverage
August	29.9°C	16.8°C	107 mm	7.2	13 h 43	64	Strong coverage
September	25.7°C	11.5°C	108 mm	6.6	12 h 24	74	Strong coverage
October	19°C	4.6°C	84 mm	7	11 h 05	54	Strong coverage
November	11.1°C	-1.7°C	57 mm	5.2	9 h 57	22	Strong coverage
December	4.5°C	-7.3°C	43 mm	4.8	9 h 23	5	Strong coverage

What has changed

Polo runs +0.2°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

+1.4

Feb

-0.1

Mar

+0.8

Apr

-0.7

May

-0.5

Jun

+0.1

Jul

-0.5

Aug

-1.0

Sep

+0.9

Oct

-0.8

Nov

+0.4

Dec

+2.2

September daytime highs, 2011–2020. Last recorded: 25.8°C.

Records at HAMILTON 2W, 1954–2021
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.2°C29 Jan 2013	-32.8°C15 Jan 1979	51 mm30 Jan 1982	119 mm1965 · driest 0 mm in 1986	65
February	25.6°C23 Feb 2017	-32.8°C9 Feb 1979	70 mm21 Feb 1997	171 mm1997 · driest 0 mm in 1991	66
March	30.0°C30 Mar 1986	-27.2°C12 Mar 1998	70 mm19 Mar 1982	208 mm1973 · driest 7 mm in 1994	66
April	33.3°C27 Apr 1989	-13.9°C2 Apr 2018	77 mm11 Apr 1997	197 mm2009 · driest 19 mm in 1962	66
May	36.1°C21 May 1956	-3.9°C2 May 1995	161 mm7 May 2007	290 mm1996 · driest 26 mm in 1992	67
June	38.9°C26 Jun 1988	1.1°C10 Jun 1988	107 mm27 Jun 2011	299 mm1967 · driest 7 mm in 1959	68
July	42.8°C14 Jul 1954	6.1°C31 Jul 1971	102 mm22 Jul 1957	266 mm1958 · driest 6 mm in 1970	67
August	42.2°C30 Aug 1984	4.4°C28 Aug 1986	91 mm8 Aug 2020	331 mm2016 · driest 3 mm in 1984	67
September	37.8°C2 Sep 1975	-2.8°C19 Sep 1991	125 mm14 Sep 1993	421 mm1993 · driest 13 mm in 1956	67
October	35.6°C5 Oct 1963	-10.0°C31 Oct 1993	114 mm5 Oct 1998	312 mm2018 · driest 4 mm in 1999	67
November	27.8°C9 Nov 1980	-23.3°C7 Nov 1991	76 mm17 Nov 1958	151 mm2015 · driest 0 mm in 1989	65
December	22.2°C1 Dec 1995	-32.8°C23 Dec 1989	53 mm14 Dec 1992	117 mm1982 · driest 0 mm in 2002	65

Typical days per month at HAMILTON 2W, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	<1	1
February	<1	0	24	1	1
March	1	0	20	3	<1
April	4	<1	8	4	<1
May	13	2	<1	5	0
June	24	11	0	4	0
July	29	18	0	3	0
August	28	15	0	3	0
September	17	6	<1	3	0
October	6	<1	7	3	0
November	<1	0	18	2	<1
December	0	0	27	2	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 (82). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in HAMILTON 2W’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	<1%	14%	3%	8%	-2.3–5.4°C
February	2%	16%	3%	11%	-0.4–9.0°C
March	13%	21%	8%	22%	7.0–14.7°C
April	32%	28%	11%	34%	15.1–20.3°C
May	54%	30%	14%	36%	21.0–25.8°C
June	71%	28%	12%	30%	26.5–30.4°C
July	77%	23%	10%	22%	29.1–33.0°C
August	76%	24%	10%	24%	27.8–32.8°C
September	70%	23%	10%	24%	23.9–28.3°C
October	41%	22%	8%	24%	16.8–21.6°C
November	11%	16%	6%	11%	7.5–14.6°C
December	<1%	14%	5%	10%	0.8–7.2°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.

1955Each stripe is one year’s mean temperature against the 61-year average. Warmest: 1956. Coolest: 1993.2020

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4404151
NOAA station: USC00233568 · HAMILTON 2W
Station distance: 21.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 39.55°, 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 HAMILTON 2W is what differs

Cameron→Hamilton→Braymer→Breckenridge→Kingston→Kidder→

Or put two places side by side: Polo vs Cameron

Best time to visitPolo.