WEATHERblaze

District of Columbia Historical Weather Data & Climate

Historical Climate Data for 1 City
1981–2025
United States

Quick Climate Facts

(19812025)
Hottest City
🔥
Washington
Jul High 95.9°F
Coldest City
❄️
Washington
Jan Low 9.7°F
Wettest City
🌧
Washington
1108 mm/yr
Driest City
🏜️
Washington
1108 mm/yr
Hottest Month
🌡
July
Avg 78.1°F
Max 95.9°F
Coldest Month
🧊
January
Avg 34.2°F
Min 9.7°F
Cities With Data
🏙️
1
city in District of Columbia
Data Coverage
📅
45 yrs
19812025

District of Columbia Climate Overview

District of Columbia has a warm temperate climate with warm summers and freezing winters.

District of Columbia has an average annual temperature of 56.3°F across all 1 city, with approximately 1108 mm of annual precipitation and average humidity of 76%. Temperatures peak in July and drop to their lowest in January, while rainfall is highest during summer months.

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. Humidity remains high throughout the year, especially during winter months, creating cold and damp conditions. These seasonal patterns make summer ideal for outdoor activities, while winters bring freezing conditions and heavy snowfall.

🏙️ Cities in District of Columbia — Weather History

📊 District of Columbia Monthly Climate Data

Monthly Climate Data
Month🌤️HighLowAvgHumid %Rain (mm)Wind (m/s)Solar (kWh/m²)
January🌤️58.6°F9.7°F34.2°F83%763.12.20
February🌤️60.8°F13.1°F37.0°F81%733.22.90
March70.5°F20.1°F45.3°F79%943.34.00
April78.8°F29.3°F54.1°F77%883.05.00
May84.9°F40.5°F62.8°F77%1072.55.50
June91.6°F51.1°F71.4°F73%1022.26.10
July95.9°F60.1°F78.1°F68%1102.06.00
August94.8°F58.1°F76.5°F68%1002.05.30
September90.5°F48.4°F69.4°F70%1042.34.40
October82.0°F35.2°F58.6°F74%872.63.40
November71.4°F25.5°F48.6°F78%812.82.40
December61.7°F16.5°F39.2°F83%892.81.90

Showing average climate conditions across 45 years (1981–2025) · averaged across all 1 cities in District of Columbia

🌦 Weather in District of Columbia Across Seasons

❄️ Winter in District of Columbia

Jan is District of Columbia's coldest month, with average lows reaching 9.7°F.
🌡️December to February (avg) · 13.1°F60.4°F

🧥 Pack heavy layers and prepare for snow — this is a Severe Winter destination.

☀️ Summer in District of Columbia

Summer temperatures in District of Columbia peak in Jul, climbing to 95.9°F.
🌡️June to August (avg) · 56.5°F94.1°F

🌤️ Limit midday outdoor exposure and stay hydrated — this is an intense Hot Summer.

🌧️ Rainy Season in District of Columbia

District of Columbia sees its highest rainfall in Jul, receiving approximately 110 mm of precipitation.
🌧️May to September (avg) ·  up to 110 mm

☔ Moderate Rainfall expected — carry rain gear and plan outdoor activities around these months.

📈 District of Columbia Monthly Averages

🌡️ Temperature Patterns

Region-wide monthly averages across 1 city · 19812025 · °F

🌡️ District of Columbia Monthly Temperature Guide

July is the hottest month in District of Columbia, with average highs reaching 95.9°F, while January is the coldest with lows dropping to 9.7°F.

Temperatures rise steadily from spring, peak in July, and gradually decline through autumn into winter.

These seasonal patterns make summer ideal for outdoor activities, while winters bring freezing conditions and heavy snowfall.

🌧️ Rainfall Distribution

Region-wide monthly rainfall · 19812025 · mm/month

💨 Humidity & Wind Speed

Monthly averages · 19812025

🌧 Rainfall & Humidity in District of Columbia

District of Columbia receives its highest rainfall in July, while humidity peaks during winter months.
🌧️ Wettest: July110 mm☀️ Driest: February73 mm

💧 Humidity peaks at 83% in December · annual avg 76%

📅 District of Columbia Yearly Climate Trends

The warmest year on record was 2024 (avg: 60.1°F), while the coldest year was 1996 (avg: 52.5°F).

📊 Key Climate Trends

  • 🌡️ District of Columbia's temperature shows a slight warming trend over the past decade
  • 📈 Minimum temperatures show a slight warming trend in recent years
  • 🌧️ Rainfall has decreased in recent years compared to earlier periods

🌡️ Annual Temperature Trend

View Range:

Averaged across all 1 cities in District of Columbia · Last 10 years · °F

District of Columbia's temperature shows a slight warming trend over the past decade. The region-wide average sits at 56.3°F with annual rainfall averaging 1108 mm.

🌧️ Annual Precipitation

View Range:

Averaged across all 1 cities in District of Columbia · Last 10 years · mm/year

Annual rainfall in District of Columbia shows noticeable variation. Rainfall has decreased in recent years compared to earlier periods.
📅 Yearly Climate Data Overview

🔥 hottest  ·  ❄️ coldest  ·  🌧️ wettest

ℹ️ Values are averages across all 1 cities in District of Columbia for each year.

YearMin TempAvg TempMax TempRainfall (mm)Avg HumidityAvg Wind
2025
35.2°F57.2°F79.0°F90172%2.7 m/s
2024
37.4°F60.1°F82.8°F94274%2.6 m/s
2023
39.0°F60.1°F81.1°F93373%2.6 m/s
2022
34.9°F57.9°F80.8°F105873%2.7 m/s
2021
36.9°F57.7°F78.6°F97476%2.6 m/s
2020
36.0°F57.4°F78.6°F141878%2.6 m/s
2019
34.5°F57.2°F79.9°F101176%2.6 m/s
2018 🌧️
34.9°F57.2°F79.5°F170381%2.7 m/s
2017
34.9°F58.3°F81.7°F95974%2.7 m/s
2016
34.7°F57.6°F80.2°F99675%2.7 m/s

Showing 1 to 10 of 45 years

🏙️ Explore More Cities in District of Columbia

❓ Frequently Asked Questions

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?
Washington is the coldest city with average January lows of 9.7°F. View Washington weather history →
Which city in District of Columbia gets the most rain?
Washington is the wettest city in District of Columbia with approximately 1108 mm of annual precipitation on average.
What is the warmest month in District of Columbia?
July is the warmest month in District of Columbia, with region-wide average highs of 95.9°F and average lows of 60.1°F.
What is the coldest month in District of Columbia?
January is the coldest month in District of Columbia with average lows of 9.7°F and average highs of 58.6°F.
What is the rainiest month in District of Columbia?
July is the rainiest month in District of Columbia with approximately 110 mm on average, while February is the driest with 73 mm.
How many cities in District of Columbia have weather data?
WeatherBlaze has historical weather data for 1 city in District of Columbia, covering 45 years of climate records from 1981 to 2025.
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.

📡 Data Source

All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.

Parameters included:
  • Temperature (Min, Max)
  • Precipitation
  • Relative Humidity
  • Wind Speed
  • Solar Radiation
Data specifications:
  • Resolution: Monthly
  • Spatial: 0.5° × 0.625°
  • Source: MERRA-2
  • Coverage: 19812025
  • Cities: 1 in District of Columbia