Lompoc, California Weather History

California, United States  •  45 yrs data 📍 34.6847°N, 120.4556°W
°F / °C
☀️

Quick Climate Facts

(1981 – 2025)
Hottest Month
🔥
Sep
Avg 66.4°F
Min 57.5°F
Max 75.2°F
Coldest Month
❄️
Jan
Avg 55.9°F
Min 47°F
Max 64.9°F
Wettest Month
🌧️
Jan
86 mm
Driest Month
🏜️
Aug
2 mm
Most Humid
💧
Mar
81%
Least Humid
🌬️
Nov
74%
Highest Ever
🌡️
83.1°F
Oct 1987
Lowest Ever
🧊
37.3°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 Lompoc Across Seasons

❄️ Winter in Lompoc

January is Lompoc's coldest month, with average lows reaching 46.9°F.
🌡️ January to March (avg)  ·  47.3°F64.8°F

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

☀️ Summer in Lompoc

Summer temperatures in Lompoc peak in September, climbing to 75.2°F.
🌡️ August to October (avg)  ·  56.8°F74.3°F

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

🌧️ Rainy Season in Lompoc

Lompoc sees its highest rainfall in January, receiving approximately 86 mm of precipitation.
🌧️ January to March (avg)  ·  up to 86 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

🌡️ Lompoc Monthly Temperature Guide

Sep is the hottest month in Lompoc, with average highs reaching 75.2°F, while Jan is the coldest with lows dropping to 47°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 Lompoc

Lompoc receives its highest rainfall in Jan, while humidity peaks in spring.
🌧️ Wettest: Jan — 86 mm ☀️ Driest: Aug — 2 mm

💧 Humidity peaks at 81% in Mar · annual avg 77%

🌍 Climate Summary

Avg Annual Temp:60.3°F
Avg Annual Rainfall:432 mm
Avg Humidity:77%
Data Period:1981 – 2025

Lompoc Climate Overview

Lompoc 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 high throughout the year, especially in spring, creating warm and humid conditions.

📈 Yearly Trends

The warmest year in Lompoc's recorded history was 2014 (avg: 63°F), while the coldest year was 1999 (avg: 58.8°F), based on annual average temperatures.

📊 Key Climate Trends

🌡️ Annual Temperature Trend

View Range:

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

Lompoc's temperatures has remained relatively stable over the past decade. The highest recorded temperature reached 83.1°F in Oct 1987, while the lowest dropped to 37.3°F in Dec 1990.

🌧️ Annual Precipitation

View Range:

Total annual precipitation · Last 10 years · mm/year

Annual rainfall in Lompoc 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 Lompoc?
Based on 45 years of data (1981–2025), Sep is typically the hottest month in Lompoc, California, with average high temperatures around 75.2°F.
What is the coldest month in Lompoc?
Jan is the coldest month in Lompoc, with average low temperatures around 47°F.
What is the rainiest month in Lompoc?
Jan receives the most rainfall with approximately 86 mm, while Aug is the driest with 2 mm.
What was the highest temperature ever recorded in Lompoc?
The highest recorded temperature was 83.1°F in Oct 1987. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in Lompoc?
The lowest recorded temperature was 37.3°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 Lompoc get?
Lompoc 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