Reading, Pennsylvania Weather History

Pennsylvania, United States  •  45 yrs data 📍 40.3370°N, 75.9465°W
°F / °C
☀️

Quick Climate Facts

(1981 – 2025)
Hottest Month
🔥
Jul
Avg 73.6°F
Min 53.4°F
Max 93.8°F
Coldest Month
❄️
Jan
Avg 27.7°F
Min 2.3°F
Max 53°F
Wettest Month
🌧️
Jul
118 mm
Driest Month
🏜️
Feb
70 mm
Most Humid
💧
Jan
87%
Least Humid
🌬️
Aug
70%
Highest Ever
🌡️
102.7°F
Jul 2010
Lowest Ever
🧊
-20°F
Jan 1994
Monthly Climate Data
Month 🌤️ High Low Avg Humid % Rain (mm) Wind (m/s) Solar (kWh/m²)

Showing average climate conditions across 45 years (1981–2025)

🌍 Weather in Reading Across Seasons

❄️ Winter in Reading

January is Reading's coldest month, with average lows reaching 2.3°F.
🌡️ December to February (avg)  ·  5.7°F54.9°F

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

☀️ Summer in Reading

Summer temperatures in Reading peak in July, climbing to 93.9°F.
🌡️ June to August (avg)  ·  50°F92.3°F

🌤️ Early mornings and evenings are most comfortable during this Hot Summer season.

🌧️ Rainy Season in Reading

Reading sees its highest rainfall in July, receiving approximately 118 mm of precipitation.
🌧️ June to September (avg)  ·  up to 118 mm

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

📅 Monthly Averages

🌡️ Temperature Patterns

Monthly averages · 1981–2025 climate normals · °F

🌡️ Reading Monthly Temperature Guide

Jul is the hottest month in Reading, with average highs reaching 93.8°F, while Jan is the coldest with lows dropping to 2.3°F.

Temperatures rise steadily from spring, peak in Jul, and gradually decline through fall into winter.

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

🌧️ Rainfall Distribution

Monthly rainfall · 1981–2025 seasonal trends · mm/month

💨 Humidity & Wind Speed

Monthly averages · 1981–2025

💧 Rainfall & Humidity in Reading

Reading receives its highest rainfall in Jul, while humidity peaks during winter months.
🌧️ Wettest: Jul — 118 mm ☀️ Driest: Feb — 70 mm

💧 Humidity peaks at 87% in Jan · annual avg 79%

🌍 Climate Summary

Avg Annual Temp:51.4°F
Avg Annual Rainfall:1166 mm
Avg Humidity:79%
Data Period:1981 – 2025

Reading Climate Overview

Reading has a temperate climate with warm summers and freezing winters.

Temperatures peak in Jul and drop to their lowest in Jan, while rainfall is highest during summer months.

Humidity remains high throughout the year, especially during winter months, creating cold and damp conditions.

📈 Yearly Trends

The warmest year in Reading's recorded history was 2024 (avg: 56.1°F), while the coldest year was 1986 (avg: 47.8°F), based on annual average temperatures.

📊 Key Climate Trends

🌡️ Annual Temperature Trend

View Range:

Average annual high/low · Last 10 years · °F

Reading's temperatures shows a slight warming trend over the past decade. The highest recorded temperature reached 102.7°F in Jul 2010, while the lowest dropped to -20°F in Jan 1994.

🌧️ Annual Precipitation

View Range:

Total annual precipitation · Last 10 years · mm/year

Annual rainfall in Reading shows noticeable variation. Rainfall has decreased in recent years compared to earlier periods.
📋 Yearly Climate Data Overview

🔥 hottest  ·  ❄️ coldest  ·  🌧️ wettest

Year Min Temp Avg Temp Max Temp Rainfall (mm) Avg Humidity Avg Wind

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❓ Frequently Asked Questions

What is the hottest month in Reading?
Based on 45 years of data (1981–2025), Jul is typically the hottest month in Reading, Pennsylvania, with average high temperatures around 93.8°F.
What is the coldest month in Reading?
Jan is the coldest month in Reading, with average low temperatures around 2.3°F.
What is the rainiest month in Reading?
Jul receives the most rainfall with approximately 118 mm, while Feb is the driest with 70 mm.
What was the highest temperature ever recorded in Reading?
The highest recorded temperature was 102.7°F in Jul 2010. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in Reading?
The lowest recorded temperature was -20°F in Jan 1994.
How many years of data does this page cover?
This page covers 45 years of climate data from 1981 to 2025. As new data is added to the database the page automatically reflects the updated coverage.
How much sunlight does Reading get?
Reading receives the most sunlight in Jun with an average solar radiation of 5.88 kWh/m²/day. This solar radiation data, sourced from NASA POWER, is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability in Pennsylvania.
Where does this weather data come from?
All climate data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite and model data. It provides monthly averages for 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: 1981–2025
  • Years: 45