Compare the Climate and Weather in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional Airport

This page lets you compare and contrast the weather and climate in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional Airport year round.

You can drill down to a specific season, month, and even day by clicking the graphs or using the navigation panel.

Map
(will replace Sanford, Sanford-Lee County Regional Airport)

Average High and Low Temperature

Compare the Average High and Low Temperature in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°F7133895133279497NowNowRaleighRaleighErwin, Harnett County AirportErwin, Harnett County AirportLouisburg, Franklin County AirportLouisburg, Franklin County AirportJohnston Regional AirportJohnston Regional AirportSanford, Sanford-Lee County Regional AirportSanford, Sanford-Lee County Regional AirportRaleigh-Durham International AirportRaleigh-Durham International Airport
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.
HighJanFebMarAprMayJunJulAugSepOctNovDec
Raleigh 51°F55°F64°F72°F79°F86°F89°F87°F81°F72°F63°F55°F
Raleigh-Durham International Airport 51°F55°F63°F72°F79°F86°F89°F87°F81°F71°F62°F54°F
Johnston Regional Airport 53°F57°F65°F74°F81°F87°F90°F88°F82°F73°F64°F56°F
Louisburg, Franklin County Airport 51°F55°F63°F71°F78°F85°F88°F86°F80°F71°F62°F54°F
Erwin, Harnett County Airport 54°F58°F66°F75°F82°F88°F90°F88°F83°F73°F64°F56°F
Sanford, Sanford-Lee County Regional Airport 52°F56°F64°F73°F80°F87°F90°F88°F81°F72°F63°F55°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Raleigh 33°F36°F42°F50°F58°F67°F70°F69°F63°F51°F42°F36°F
Raleigh-Durham International Airport 33°F35°F42°F50°F58°F67°F70°F69°F63°F51°F42°F36°F
Johnston Regional Airport 33°F36°F42°F49°F58°F66°F70°F69°F62°F51°F42°F36°F
Louisburg, Franklin County Airport 33°F35°F41°F49°F57°F65°F69°F68°F61°F50°F41°F35°F
Erwin, Harnett County Airport 35°F37°F44°F52°F61°F68°F72°F70°F64°F53°F43°F38°F
Sanford, Sanford-Lee County Regional Airport 32°F34°F41°F49°F57°F65°F69°F68°F61°F49°F40°F35°F

Raleigh

Average Hourly Temperature in RaleighJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldvery coldvery coldcoldcoldcoolcomfortablewarmhotvery cold

Raleigh-Durham International Airport

Average Hourly Temperature in Raleigh-Durham International AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldvery coldvery coldcoldcoldcoolcomfortablewarmhotvery cold

Johnston Regional Airport

Average Hourly Temperature in Johnston Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldvery coldcoldcoldcoolcomfortablewarmhotvery coldvery cold

Louisburg, Franklin County Airport

Average Hourly Temperature in Louisburg, Franklin County AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldvery coldvery coldcoldcoldcoolcoolcomfortablewarmhotvery cold

Erwin, Harnett County Airport

Average Hourly Temperature in Erwin, Harnett County AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldvery coldcoldcoldcoolcomfortablewarmhotvery coldwarmvery cold

Sanford, Sanford-Lee County Regional Airport

Average Hourly Temperature in Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldvery coldvery coldcoldcoldcoolcoolcomfortablewarmhotvery cold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies

Compare the Chance of Clearer Skies in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%654948NowNowRaleighRaleighErwin, Harnett County AirportErwin, Harnett County AirportLouisburg, Franklin County AirportLouisburg, Franklin County AirportJohnston Regional AirportJohnston Regional AirportRaleigh-Durham International AirportRaleigh-Durham International Airport
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).
Clearer SkiesJanFebMarAprMayJunJulAugSepOctNovDec
Raleigh 50%50%53%57%54%54%55%59%61%64%58%51%
Raleigh-Durham International Airport 50%50%53%56%54%54%55%59%61%64%58%51%
Johnston Regional Airport 50%50%53%57%55%54%54%57%60%64%58%51%
Louisburg, Franklin County Airport 50%50%53%56%54%54%55%59%61%64%58%51%
Erwin, Harnett County Airport 50%50%53%57%55%53%53%57%60%64%58%51%
Sanford, Sanford-Lee County Regional Airport 50%50%53%57%55%54%55%59%62%64%58%51%

Daily Chance of Precipitation

Compare the Daily Chance of Precipitation in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%4620NowNowRaleighRaleighErwin, Harnett County AirportErwin, Harnett County AirportLouisburg, Franklin County AirportLouisburg, Franklin County AirportJohnston Regional AirportJohnston Regional AirportRaleigh-Durham International AirportRaleigh-Durham International Airport
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Raleigh 8.2d7.8d8.5d8.3d10.3d11.8d13.9d12.1d8.9d6.9d6.4d7.7d
Raleigh-Durham International Airport 8.1d7.8d8.5d8.3d10.3d11.6d13.5d11.7d8.6d6.9d6.4d7.5d
Johnston Regional Airport 8.1d8.0d8.7d8.3d10.0d12.0d14.1d12.5d9.0d6.8d6.5d7.7d
Louisburg, Franklin County Airport 8.0d7.8d8.6d8.3d10.3d11.5d13.2d11.7d8.6d6.9d6.5d7.7d
Erwin, Harnett County Airport 8.0d8.0d8.7d8.2d10.1d12.2d14.7d13.0d9.0d6.8d6.4d7.5d
Sanford, Sanford-Lee County Regional Airport 8.0d7.7d8.5d8.3d10.1d11.7d14.3d12.5d8.9d6.8d6.5d7.6d

Average Monthly Rainfall

Compare the Average Monthly Rainfall in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in4.22.72.64.44.0NowNowRaleighRaleighErwin, Harnett County AirportErwin, Harnett County AirportLouisburg, Franklin County AirportLouisburg, Franklin County AirportJohnston Regional AirportJohnston Regional AirportSanford, Sanford-Lee County Regional AirportSanford, Sanford-Lee County Regional Airport
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Raleigh 2.8″2.9″3.3″3.1″3.2″3.6″3.9″4.1″4.0″3.1″2.7″2.8″
Raleigh-Durham International Airport 2.8″2.8″3.3″3.1″3.2″3.5″3.8″4.0″3.9″3.1″2.7″2.8″
Johnston Regional Airport 2.9″3.1″3.3″3.1″3.2″3.7″4.1″4.4″4.2″3.1″2.7″2.8″
Louisburg, Franklin County Airport 2.8″2.8″3.4″3.1″3.3″3.5″3.8″4.0″3.9″3.1″2.8″2.8″
Erwin, Harnett County Airport 2.9″3.1″3.3″3.0″3.2″3.8″4.2″4.4″4.2″3.1″2.7″2.8″
Sanford, Sanford-Lee County Regional Airport 2.8″2.9″3.3″3.0″3.1″3.5″3.8″3.9″3.8″3.1″2.7″2.8″

Average Monthly Snowfall

Compare the Average Monthly Snowfall in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in3.5 in3.5 in4.0 in4.0 in2.93.52.0NowNowErwin, Harnett County AirportErwin, Harnett County AirportLouisburg, Franklin County AirportLouisburg, Franklin County AirportJohnston Regional AirportJohnston Regional AirportSanford, Sanford-Lee County Regional AirportSanford, Sanford-Lee County Regional AirportRaleigh-Durham International AirportRaleigh-Durham International Airport
The average snowfall accumulated over the course of a sliding 31-day period centered on the day in question.
SnowfallJanFebMarAprMayJunJulAugSepOctNovDec
Raleigh 2.5″2.7″0.6″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.2″1.2″
Raleigh-Durham International Airport 2.9″3.4″0.8″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.2″1.3″
Johnston Regional Airport 1.9″1.8″0.4″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.1″1.0″
Louisburg, Franklin County Airport 2.8″3.3″0.7″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.3″1.3″
Erwin, Harnett County Airport 2.0″1.7″0.4″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.1″0.9″
Sanford, Sanford-Lee County Regional Airport 2.6″2.6″0.5″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.2″1.2″

Hours of Daylight

Compare the Hours of Daylight in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr14.69.7NowNowRaleighRaleighErwin, Harnett County AirportErwin, Harnett County AirportLouisburg, Franklin County AirportLouisburg, Franklin County AirportJohnston Regional AirportJohnston Regional AirportSanford, Sanford-Lee County Regional AirportSanford, Sanford-Lee County Regional AirportRaleigh-Durham International AirportRaleigh-Durham International Airport
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Raleigh 10.0h10.9h12.0h13.1h14.1h14.5h14.3h13.5h12.4h11.2h10.3h9.8h
Raleigh-Durham International Airport 10.0h10.9h12.0h13.1h14.1h14.6h14.3h13.5h12.4h11.2h10.3h9.8h
Johnston Regional Airport 10.1h10.9h12.0h13.1h14.1h14.5h14.3h13.4h12.4h11.3h10.3h9.8h
Louisburg, Franklin County Airport 10.0h10.9h12.0h13.1h14.1h14.6h14.3h13.5h12.4h11.2h10.3h9.8h
Erwin, Harnett County Airport 10.1h10.9h12.0h13.1h14.1h14.5h14.3h13.4h12.4h11.3h10.3h9.8h
Sanford, Sanford-Lee County Regional Airport 10.1h10.9h12.0h13.1h14.1h14.5h14.3h13.4h12.4h11.3h10.3h9.8h

Chance of Muggy Conditions

Compare the Chance of Muggy Conditions in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%86NowNowRaleighRaleighErwin, Harnett County AirportErwin, Harnett County AirportLouisburg, Franklin County AirportLouisburg, Franklin County AirportJohnston Regional AirportJohnston Regional AirportSanford, Sanford-Lee County Regional AirportSanford, Sanford-Lee County Regional AirportRaleigh-Durham International AirportRaleigh-Durham International Airport
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Raleigh 0.1d0.0d0.1d0.8d6.2d17.5d25.4d23.5d12.8d3.3d0.6d0.2d
Raleigh-Durham International Airport 0.0d0.0d0.1d0.6d5.9d16.8d24.7d22.6d12.1d3.1d0.5d0.2d
Johnston Regional Airport 0.2d0.0d0.2d1.0d5.9d16.7d25.4d23.5d13.4d4.0d0.9d0.4d
Louisburg, Franklin County Airport 0.1d0.0d0.1d0.7d6.2d16.9d24.5d22.4d12.0d3.1d0.7d0.2d
Erwin, Harnett County Airport 0.2d0.1d0.4d1.5d7.8d18.0d25.6d24.1d13.7d4.0d0.9d0.4d
Sanford, Sanford-Lee County Regional Airport 0.1d0.0d0.1d1.1d6.8d17.7d25.5d23.5d12.9d3.2d0.6d0.2d

Average Wind Speed

Compare the Average Wind Speed in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mph10 mph10 mph7.44.76.54.09.36.18.85.87.0NowNowRaleighRaleighErwin, Harnett County AirportErwin, Harnett County AirportLouisburg, Franklin County AirportLouisburg, Franklin County AirportJohnston Regional AirportJohnston Regional AirportSanford, Sanford-Lee County Regional AirportSanford, Sanford-Lee County Regional Airport
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Raleigh 6.77.17.37.16.15.34.94.85.45.86.26.4
Raleigh-Durham International Airport 6.06.36.56.25.24.64.24.14.75.15.45.6
Johnston Regional Airport 8.48.99.29.07.86.96.56.37.07.57.98.1
Louisburg, Franklin County Airport 6.77.17.37.06.05.34.94.85.45.86.26.4
Erwin, Harnett County Airport 7.98.48.78.57.46.56.15.96.77.07.47.6
Sanford, Sanford-Lee County Regional Airport 6.46.86.96.75.75.04.74.65.25.55.96.0

Tourism Score

Compare the Tourism Score in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.31.0NowNowRaleighRaleighErwin, Harnett County AirportErwin, Harnett County AirportLouisburg, Franklin County AirportLouisburg, Franklin County AirportJohnston Regional AirportJohnston Regional AirportSanford, Sanford-Lee County Regional AirportSanford, Sanford-Lee County Regional Airport
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score

Compare the Beach/Pool Score in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.90.15.9NowNowRaleighRaleighErwin, Harnett County AirportErwin, Harnett County AirportLouisburg, Franklin County AirportLouisburg, Franklin County AirportJohnston Regional AirportJohnston Regional AirportRaleigh-Durham International AirportRaleigh-Durham International Airport
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season

Compare the Growing Season in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowRaleighRaleighErwin, Harnett County AirportErwin, Harnett County AirportLouisburg, Franklin County AirportLouisburg, Franklin County AirportJohnston Regional AirportJohnston Regional AirportSanford, Sanford-Lee County Regional AirportSanford, Sanford-Lee County Regional AirportRaleigh-Durham International AirportRaleigh-Durham International Airport
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days

Compare the Growing Degree Days in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°F6,000°F6,000°FNowNowErwin, Harnett County AirportErwin, Harnett County AirportLouisburg, Franklin County AirportLouisburg, Franklin County AirportJohnston Regional AirportJohnston Regional AirportSanford, Sanford-Lee County Regional AirportSanford, Sanford-Lee County Regional AirportRaleigh-Durham International AirportRaleigh-Durham International Airport
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy

Compare the Average Daily Incident Shortwave Solar Energy in Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh6.82.46.7NowNowErwin, Harnett County AirportErwin, Harnett County AirportLouisburg, Franklin County AirportLouisburg, Franklin County AirportJohnston Regional AirportJohnston Regional AirportSanford, Sanford-Lee County Regional AirportSanford, Sanford-Lee County Regional AirportRaleigh-Durham International AirportRaleigh-Durham International Airport
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Raleigh 2.73.64.86.06.66.86.56.05.24.23.12.5
Raleigh-Durham International Airport 2.73.64.85.96.66.86.56.05.24.23.12.5
Johnston Regional Airport 2.73.64.86.06.66.76.45.95.24.23.12.5
Louisburg, Franklin County Airport 2.73.54.85.96.66.86.56.05.24.13.02.4
Erwin, Harnett County Airport 2.83.64.86.06.66.76.45.95.24.23.12.5
Sanford, Sanford-Lee County Regional Airport 2.73.64.86.06.66.76.56.05.24.23.12.5

This report illustrates the typical weather for Raleigh; Raleigh-Durham International Airport; Johnston Regional Airport; Louisburg, Franklin County Airport; Erwin, Harnett County Airport; and Sanford, Sanford-Lee County Regional Airport year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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