United States · 1991–2020

Best time to visit
Perryville.

September leads for comfortable weather in Perryville: typically 26.8°C by day, 13.9°C at night, with 91 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember
Typical high26.8°C
Typical low13.9°C
Rain in September91 mm
Comfort

September

September · May · June

78climate match
Beach

August

August · July · June

77climate match
Outdoors

October

October · April · May

83climate match

The weakest month is January, scoring 5 against September’s 78days reach only 5.9°C, 18° 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
55.9° / -4.8°
Feb
58.4° / -2.9°
Mar
2313.5° / 0.7°
Apr
5219.7° / 6.1°
May
7624.1° / 12.1°
Jun
6528.5° / 16.8°
Jul
5430.3° / 18.9°
Aug
6530° / 18°
Sep
7826.8° / 13.9°
Oct
6520.4° / 7.4°
Nov
3013.2° / 1.2°
Dec
57.9° / -2.4°
Monthly climate evidence for Perryville — daylight is calculated from latitude, everything else is measured
MonthDayNightRainWet daysDaylightComfortCoverage
January5.9°C-4.8°C98 mm8.79 h 495Strong coverage
February8.4°C-2.9°C88 mm8.310 h 445Strong coverage
March13.5°C0.7°C112 mm9.211 h 5023Strong coverage
April19.7°C6.1°C118 mm9.813 h 0752Strong coverage
May24.1°C12.1°C121 mm1014 h 1176Strong coverage
June28.5°C16.8°C117 mm8.914 h 4565Strong coverage
July30.3°C18.9°C128 mm914 h 3154Strong coverage
August30°C18°C79 mm6.813 h 3765Strong coverage
September26.8°C13.9°C91 mm612 h 2378Strong coverage
October20.4°C7.4°C76 mm6.811 h 0965Strong coverage
November13.2°C1.2°C75 mm7.210 h 0530Strong coverage
December7.9°C-2.4°C107 mm9.69 h 345Strong coverage

What has changed

Perryville runs +0.6°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
+1.2
Feb
+1.6
Mar
-0.1
Apr
+0.6
May
+0.6
Jun
+0.7
Jul
+0.5
Aug
+0.1
Sep
+0.5
Oct
+0.1
Nov
-0.7
Dec
+1.9
September daytime highs, 20112019. Last recorded: 31.4°C.
Records at DANVILLE, 1933–2020
MonthRecord highRecord lowWettest dayWettest / driest monthYears
January26.1°C24 Jan 1943-28.9°C20 Jan 199481 mm1 Jan 1945408 mm1937 · driest 13 mm in 198187
February26.1°C11 Feb 1999-27.8°C21 Feb 2015102 mm14 Feb 1989332 mm1989 · driest 5 mm in 196887
March30.6°C31 Mar 1998-21.1°C8 Mar 2015135 mm2 Mar 1997362 mm1997 · driest 16 mm in 202087
April32.2°C26 Apr 1989-8.3°C5 Apr 194484 mm22 Apr 1972321 mm1972 · driest 22 mm in 198688
May35.0°C22 May 1941-2.8°C1 May 1963122 mm3 May 2010303 mm2010 · driest 17 mm in 194188
June41.7°C29 Jun 19365.0°C5 Jun 1945119 mm16 Jun 1989307 mm1989 · driest 10 mm in 193688
July39.4°C29 Jul 19528.3°C22 Jul 1944162 mm20 Jul 1996284 mm1996 · driest 29 mm in 202087
August40.6°C21 Aug 19365.6°C31 Aug 194687 mm27 Aug 1944244 mm1974 · driest 8 mm in 194587
September40.0°C6 Sep 19540.0°C29 Sep 1942116 mm23 Sep 2006254 mm2006 · driest 0 mm in 201987
October35.6°C2 Oct 2019-6.1°C28 Oct 197684 mm2 Oct 1977161 mm1983 · driest 6 mm in 193887
November28.3°C1 Nov 1950-19.4°C25 Nov 195073 mm27 Nov 1973211 mm1973 · driest 12 mm in 197687
December25.6°C15 Dec 1984-27.8°C23 Dec 1989105 mm9 Dec 1978307 mm1978 · driest 10 mm in 196587
Typical days per month at DANVILLE, 1991–2020
MonthDays 25°C+Days 30°C+Frost nightsHeavy rain (10 mm+)Snow days
January002031
February<10173<1
March10124<1
April6<1340
May153<140
June2612040
July3018040
August2917030
September218030
October7<1230
November<101130
December00174<1
How often, not how much — every day in DANVILLE’s record sorted by what it was actually like, rather than averaged
MonthWarm & dry daysWet daysWashoutsWeek with 3+ wet daysDaytime mean has ranged
January1%30%11%36%2.1–9.7°C
February3%31%12%40%4.0–11.6°C
March14%33%12%43%10.4–16.9°C
April36%33%12%42%17.0–21.9°C
May58%33%13%41%21.9–26.6°C
June69%31%13%36%26.7–30.7°C
July71%29%13%31%28.7–31.9°C
August76%24%10%24%28.4–32.0°C
September75%22%9%19%24.8–29.5°C
October49%22%7%22%18.5–23.6°C
November14%27%10%31%10.8–16.3°C
December2%30%11%36%4.4–11.2°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.

1934Each stripe is one year’s mean temperature against the 81-year average. Warmest: 1998. Coolest: 1960.2019

The evidence behind this page

Nearby, measured,
and named.

Place identity
GeoNames 4303964
NOAA station
USC00152040 · DANVILLE
Station distance
16.6 km from the place centre
Climate period
1991–2020
Minimum month coverage
27 usable years
Daylight
Calculated from latitude 37.65°, 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 DANVILLE is what differs

DanvilleLancasterStanfordJunction CityHustonvilleAlum Springs