Climate averages 1991–2020

Roswell weather
in February.

A cool, wet month: the 10th warmest and the joint 10th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 12.5°C Daytime mean, February
Average low 2.9°C Night-time mean, February
Rainfall 117 mm 10 days with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in Roswell · average highYear overview

February is a cool month in Roswell: daytime highs average 12.5°C and nights cool to about 2.9°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 117 mm of rain on roughly 10 days, which makes February a wet month (the joint 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 56 min on an average February day.

The nearest other city in this atlas is Sandy Springs (11 km away). In February its highs average 12.6°C, about as warm as Roswell, with 114 mm of rain.

Among the 498 cities listed in the United States, Roswell ranks joint 241st of 498 for the warmest February highs and joint 462nd of 498 for the driest February (rainfall, lowest first). The mean February high of those 498 cities is 11.1°C; Roswell is 1.3°C warmer than that mean.

From February to March, average highs rise by 4.1°C to 16.6°C, and monthly rainfall rises from 117 mm to 120 mm.

The annual picture

February in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -505101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Roswell climate table

1991–2020
Monthly climate averages for Roswell, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 10.3°C1.4°C1.4°C11610.410.210 h
February, selected 12.5°C2.9°C2.9°C11710.110.911 h
March 16.6°C6.3°C6.3°C12010.312.012 h
April 21.2°C10.4°C10.4°C1029.613.013 h
May 25.5°C15.2°C15.2°C859.813.914 h
June 29.0°C19.5°C19.5°C10413.614.414 h
July 30.5°C21.5°C21.5°C10414.614.214 h
August 30.0°C21.1°C21.1°C10412.613.413 h
September 27.1°C18.2°C18.2°C918.612.412 h
October 21.8°C12.3°C12.3°C867.211.411 h
November 16.0°C6.5°C6.5°C998.510.410 h
December 11.5°C3.0°C3.0°C11710.39.910 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

February in nearby cities

Distance from Roswell

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Roswell) is explained once on the Roswell year overview and on the Sources, method and limits page.

Johns Creek lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.