Santa Maria, California Weather History

California, United States  •  45 yrs data 📍 34.9150°N, 120.3933°W
°F / °C
☀️

Quick Climate Facts

(1981 – 2025)
Hottest Month
🔥
Sep
Avg 70.4°F
Min 54°F
Max 86.7°F
Coldest Month
❄️
Jan
Avg 54.9°F
Min 40.5°F
Max 69.4°F
Wettest Month
🌧️
Jan
85 mm
Driest Month
🏜️
Aug
2 mm
Most Humid
💧
Mar
78%
Least Humid
🌬️
Jul
63%
Highest Ever
🌡️
98.1°F
Sep 2017
Lowest Ever
🧊
30.7°F
Dec 1990
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 Santa Maria Across Seasons

❄️ Winter in Santa Maria

January is Santa Maria's coldest month, with average lows reaching 40.5°F.
🌡️ December to February (avg)  ·  40.6°F69.4°F

🧥 Light layers are sufficient — this Mild Winter stays cool without prolonged hard freezes.

☀️ Summer in Santa Maria

Summer temperatures in Santa Maria peak in September, climbing to 86.7°F.
🌡️ July to September (avg)  ·  54.3°F84.7°F

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

🌧️ Rainy Season in Santa Maria

Santa Maria sees its highest rainfall in January, receiving approximately 85 mm of precipitation.
🌧️ January to March (avg)  ·  up to 85 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

🌡️ Santa Maria Monthly Temperature Guide

Sep is the hottest month in Santa Maria, with average highs reaching 86.7°F, while Jan is the coldest with lows dropping to 40.5°F.

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

These seasonal patterns offer comfortable conditions year-round, with warm summers and mild winters.

🌧️ Rainfall Distribution

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

💨 Humidity & Wind Speed

Monthly averages · 1981–2025

💧 Rainfall & Humidity in Santa Maria

Santa Maria receives its highest rainfall in Jan, while humidity peaks in spring.
🌧️ Wettest: Jan — 85 mm ☀️ Driest: Aug — 2 mm

💧 Humidity peaks at 78% in Mar · annual avg 70%

🌍 Climate Summary

Avg Annual Temp:62.2°F
Avg Annual Rainfall:422 mm
Avg Humidity:70%
Data Period:1981 – 2025

Santa Maria Climate Overview

Santa Maria has a warm temperate climate with warm summers and mild winters.

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

Humidity remains moderate throughout the year, especially in spring, creating warm and humid conditions.

📈 Yearly Trends

The warmest year in Santa Maria's recorded history was 2014 (avg: 64.9°F), while the coldest year was 1982 (avg: 60.1°F), based on annual average temperatures.

📊 Key Climate Trends

🌡️ Annual Temperature Trend

View Range:

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

Santa Maria's temperatures has remained relatively stable over the past decade. The highest recorded temperature reached 98.1°F in Sep 2017, while the lowest dropped to 30.7°F in Dec 1990.

🌧️ Annual Precipitation

View Range:

Total annual precipitation · Last 10 years · mm/year

Annual rainfall in Santa Maria shows noticeable variation. Rainfall varies year-to-year without a clear long-term trend.
📋 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 Santa Maria?
Based on 45 years of data (1981–2025), Sep is typically the hottest month in Santa Maria, California, with average high temperatures around 86.7°F.
What is the coldest month in Santa Maria?
Jan is the coldest month in Santa Maria, with average low temperatures around 40.5°F.
What is the rainiest month in Santa Maria?
Jan receives the most rainfall with approximately 85 mm, while Aug is the driest with 2 mm.
What was the highest temperature ever recorded in Santa Maria?
The highest recorded temperature was 98.1°F in Sep 2017. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in Santa Maria?
The lowest recorded temperature was 30.7°F in Dec 1990.
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 Santa Maria get?
Santa Maria receives the most sunlight in Jun with an average solar radiation of 6.92 kWh/m²/day. This solar radiation data, sourced from NASA POWER, is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability in California.
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