District of Columbia Historical Weather Data & Climate
Historical Climate Data for 1 City • 1981–2025
°F / °C
District of Columbia Climate Overview
District of Columbia has an average annual temperature of
56.3°F
(across all 1 city) with approximately
1092 mm of annual precipitation
and average humidity of 76%.
The warmest city is Washington
with average July highs of 95.9°F,
while Washington
is the coldest with average January lows of 9.7°F.
This page covers 45 years of NASA POWER climate data (1981–2025)
including temperature, rainfall, humidity, wind speed, and solar radiation.
🏙️ Cities in District of Columbia — Weather History
📅 District of Columbia Monthly Climate Averages
🌡️ State-Wide Monthly Temperature
Average across all 1 city · 1981–2025 · °F
🌧️ Monthly Precipitation
State-wide average · mm/month
📖 District of Columbia Seasonal Climate Guide
Jul is typically the warmest month across District of Columbia with average highs around
95.9°F, while
Jan is the coldest with average lows near
9.7°F.
Jul is the wettest month with approximately
109 mm of rainfall on average.
Month
Max Temp
Min Temp
Avg Temp
Rain (mm)
Humidity
Wind (m/s)
Solar (kWh/m²)
Jan
58.6°F
9.7°F
34.2°F
74
83%
3.1
2.20
Feb
60.8°F
13.1°F
37°F
73
81%
3.2
2.90
Mar
70.5°F
20.1°F
45.3°F
93
79%
3.3
4.00
Apr
78.8°F
29.3°F
54.1°F
87
77%
3.0
5.00
May
84.9°F
40.6°F
62.8°F
109
77%
2.5
5.50
Jun
91.6°F
51.1°F
71.4°F
102
73%
2.2
6.10
Jul
95.9°F
60.1°F
78.1°F
109
68%
2.0
6.00
Aug
94.8°F
58.1°F
76.5°F
99
68%
2.0
5.30
Sep
90.5°F
48.4°F
69.4°F
105
70%
2.3
4.40
Oct
82°F
35.2°F
58.6°F
87
74%
2.6
3.40
Nov
71.4°F
25.5°F
48.4°F
81
78%
2.8
2.40
Dec
61.7°F
16.5°F
39.2°F
90
83%
2.8
1.90
📈 District of Columbia Yearly Climate Trends
🌡️ Annual Temperature Trend
State-wide avg annual high & low · Last 10 years
📈 District of Columbia Long-Term Climate Trends (1981–2025)
This chart shows how District of Columbia's average temperatures have shifted across 45 years.
Use the range buttons to focus on recent decades or view the full historical record.
Data is averaged across all 1 city in the state.
🌧️ Annual Precipitation Trend
State-wide avg annual precipitation · Last 10 years · mm/year
🔗 Explore Cities in District of Columbia
Browse detailed weather history, monthly averages, and 45-year climate trends for every city in District of Columbia.
What is the hottest city in District of Columbia?▼
Washington is the hottest city in District of Columbia with an average July high of 95.9°F based on 45 years of data. View Washington weather history →
What is the coldest city in District of Columbia?▼
Which city in District of Columbia gets the most rain?▼
Washington is the wettest city in District of Columbia with approximately 1092 mm of annual precipitation on average. View Washington weather history →
What is the warmest month in District of Columbia?▼
Jul is the warmest month across District of Columbia, with state-wide average highs of 95.9°F and average lows of 60.1°F.
How many cities in District of Columbia have weather data?▼
TownPillar has historical weather data for 1 city in District of Columbia, covering 45 years of NASA POWER climate records from 1981 to 2025.
Which month has the most sunshine in District of Columbia?▼
Jun is the sunniest month across District of Columbia with an average solar radiation of 6.10 kWh/m²/day state-wide. This solar radiation data from NASA POWER is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability.
Where does this climate data come from?▼
All data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis data. It includes monthly temperature, precipitation, humidity, wind speed, and solar radiation at 0.5° × 0.625° spatial resolution.
📚 Data Source
All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources). Data covers 45 years (1981–2025) across 1 city in District of Columbia at monthly temporal resolution.