Sheboygan, Wisconsin Weather History

Wisconsin, United States  •  45 yrs data 📍 43.7643°N, 87.7542°W
°F / °C
☀️

Quick Climate Facts

(1981 – 2025)
Hottest Month
🔥
Aug
Avg 70.2°F
Min 58.1°F
Max 82.3°F
Coldest Month
❄️
Jan
Avg 20.4°F
Min 1.2°F
Max 39.5°F
Wettest Month
🌧️
Jun
96 mm
Driest Month
🏜️
Feb
35 mm
Most Humid
💧
Jan
88%
Least Humid
🌬️
Aug
76%
Highest Ever
🌡️
90.7°F
Aug 1988
Lowest Ever
🧊
-23.6°F
Jan 1982
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 Sheboygan Across Seasons

❄️ Winter in Sheboygan

January is Sheboygan's coldest month, with average lows reaching 1.2°F.
🌡️ December to February (avg)  ·  5°F42.3°F

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

☀️ Summer in Sheboygan

Summer temperatures in Sheboygan peak in August, climbing to 82.2°F.
🌡️ July to September (avg)  ·  54°F81°F

🌤️ Conditions are ideal for outdoor activities throughout the day in this Mild Summer.

🌧️ Rainy Season in Sheboygan

Sheboygan sees its highest rainfall in June, receiving approximately 96 mm of precipitation.
🌧️ June to August (avg)  ·  up to 96 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

🌡️ Sheboygan Monthly Temperature Guide

Aug is the hottest month in Sheboygan, with average highs reaching 82.3°F, while Jan is the coldest with lows dropping to 1.2°F.

Temperatures rise steadily from spring, peak in Aug, 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 Sheboygan

Sheboygan receives its highest rainfall in Jun, while humidity peaks during winter months.
🌧️ Wettest: Jun — 96 mm ☀️ Driest: Feb — 35 mm

💧 Humidity peaks at 88% in Jan · annual avg 80%

🌍 Climate Summary

Avg Annual Temp:46.2°F
Avg Annual Rainfall:835 mm
Avg Humidity:80%
Data Period:1981 – 2025

Sheboygan Climate Overview

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

Temperatures peak in Aug 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 Sheboygan's recorded history was 2012 (avg: 50.2°F), while the coldest year was 2014 (avg: 41.4°F), based on annual average temperatures.

📊 Key Climate Trends

🌡️ Annual Temperature Trend

View Range:

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

Sheboygan's temperatures has remained relatively stable over the past decade. The highest recorded temperature reached 90.7°F in Aug 1988, while the lowest dropped to -23.6°F in Jan 1982.

🌧️ Annual Precipitation

View Range:

Total annual precipitation · Last 10 years · mm/year

Annual rainfall in Sheboygan 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 Sheboygan?
Based on 45 years of data (1981–2025), Aug is typically the hottest month in Sheboygan, Wisconsin, with average high temperatures around 82.3°F.
What is the coldest month in Sheboygan?
Jan is the coldest month in Sheboygan, with average low temperatures around 1.2°F.
What is the rainiest month in Sheboygan?
Jun receives the most rainfall with approximately 96 mm, while Feb is the driest with 35 mm.
What was the highest temperature ever recorded in Sheboygan?
The highest recorded temperature was 90.7°F in Aug 1988. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in Sheboygan?
The lowest recorded temperature was -23.6°F in Jan 1982.
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 Sheboygan get?
Sheboygan receives the most sunlight in Jul with an average solar radiation of 5.93 kWh/m²/day. This solar radiation data, sourced from NASA POWER, is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability in Wisconsin.
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