United States · 1991–2020

Best time to visit
Lawson Heights.

September leads for comfortable weather in Lawson Heights: typically 23.8°C by day, 11.4°C at night, with 108 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember
Typical high23.8°C
Typical low11.4°C
Rain in September108 mm
Comfort

September

September · June · August

77climate match
Beach

July

July · August · June

60climate match
Outdoors

October

October · May · September

72climate match

The weakest month is January, scoring 5 against September’s 77days reach only 3.8°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
53.8° / -6°
Feb
54.8° / -5.6°
Mar
59.6° / -2.3°
Apr
3617.1° / 3°
May
6121.8° / 8.4°
Jun
7326.1° / 13.9°
Jul
6628° / 16.1°
Aug
7127.5° / 15.5°
Sep
7723.8° / 11.4°
Oct
5218° / 5.1°
Nov
1411.3° / 0.5°
Dec
55.4° / -3.5°
Monthly climate evidence for Lawson Heights — daylight is calculated from latitude, everything else is measured
MonthDayNightRainWet daysDaylightComfortCoverage
January3.8°C-6°C103 mm14.39 h 355Good coverage
February4.8°C-5.6°C70 mm11.510 h 365Good coverage
March9.6°C-2.3°C104 mm12.911 h 495Good coverage
April17.1°C3°C107 mm13.413 h 1336Good coverage
May21.8°C8.4°C114 mm12.314 h 2361Good coverage
June26.1°C13.9°C115 mm10.615 h 0273Good coverage
July28°C16.1°C119 mm1114 h 4666Good coverage
August27.5°C15.5°C113 mm8.913 h 4671Good coverage
September23.8°C11.4°C108 mm9.112 h 2477Good coverage
October18°C5.1°C73 mm8.411 h 0452Good coverage
November11.3°C0.5°C112 mm11.89 h 5314Good coverage
December5.4°C-3.5°C88 mm12.69 h 195Good coverage
Records at DERRY 4 SW, 1896–2008
MonthRecord highRecord lowWettest dayWettest / driest monthYears
January28.3°C21 Jan 1906-33.9°C13 Jan 191295 mm22 Jan 1927255 mm2005 · driest 27 mm in 1946103
February26.1°C24 Feb 1906-29.4°C11 Feb 189954 mm14 Feb 1971193 mm1986 · driest 24 mm in 1941102
March30.0°C25 Mar 1929-23.3°C8 Mar 198682 mm17 Mar 1936231 mm1936 · driest 11 mm in 1910102
April33.3°C25 Apr 1915-15.6°C1 Apr 192361 mm2 Apr 1901214 mm1901 · driest 30 mm in 1932102
May37.8°C1 May 1899-6.1°C7 May 198169 mm6 May 1971259 mm1989 · driest 33 mm in 1926103
June36.7°C21 Jun 1953-2.2°C8 Jun 1977149 mm23 Jun 1972388 mm1972 · driest 29 mm in 1967103
July40.6°C4 Jul 19112.2°C24 Jul 1981124 mm21 Jul 1916268 mm1958 · driest 37 mm in 199799
August38.9°C6 Aug 19180.0°C29 Aug 1982105 mm3 Aug 1935280 mm2003 · driest 25 mm in 1930100
September37.8°C3 Sep 1900-4.4°C14 Sep 1985140 mm18 Sep 2004229 mm1926 · driest 19 mm in 1908100
October34.4°C16 Oct 1899-10.0°C28 Oct 1985127 mm15 Oct 1954288 mm1954 · driest 4 mm in 1924102
November32.2°C21 Nov 1906-18.3°C29 Nov 193056 mm28 Nov 1921332 mm1985 · driest 8 mm in 1908104
December24.4°C4 Dec 1982-27.2°C30 Dec 191753 mm3 Dec 1991193 mm1990 · driest 15 mm in 1955104
Typical days per month at DERRY 4 SW, 1991–2020
MonthDays 25°C+Days 30°C+Frost nightsHeavy rain (10 mm+)Snow days
January002038
February001826
March<101644
April3<174<1
May91140
June196040
July268040
August257040
September132<130
October4<143<1
November<101242
December001936
How often, not how much — every day in DERRY 4 SW’s record sorted by what it was actually like, rather than averaged
MonthWarm & dry daysWet daysWashoutsWeek with 3+ wet daysDaytime mean has ranged
January<1%42%10%60%-0.2–8.0°C
February<1%41%8%57%0.7–8.1°C
March8%39%11%57%6.2–14.1°C
April25%41%13%56%13.9–19.7°C
May48%38%13%52%19.9–25.1°C
June63%35%14%46%24.6–28.8°C
July67%33%14%40%27.1–31.0°C
August70%29%12%32%25.9–30.3°C
September63%27%10%30%22.5–27.1°C
October36%28%9%33%15.9–21.4°C
November8%36%10%47%8.6–14.2°C
December<1%39%9%55%1.3–8.8°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.

1898Each stripe is one year’s mean temperature against the 82-year average. Warmest: 1938. Coolest: 1981.2005

The evidence behind this page

Nearby, measured,
and named.

Place identity
GeoNames 5197463
NOAA station
USC00362108 · DERRY 4 SW
Station distance
4.8 km from the place centre
Climate period
1991–2020
Minimum month coverage
16 usable years
Daylight
Calculated from latitude 40.29°, 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 DERRY 4 SW is what differs

LatrobeLoyalhannaBlairsvilleDerryHostetterRobinson