Katihar Temperature and Weather History

Bihar, India • Historical Climate Data for the Past 45 Years

Location: 25.5374°N, 87.5835°E

°C/°F
Wind

Katihar Climate Overview

Katihar, Bihar has an average annual temperature of 25.8°C, approximately 1081mm of rainfall per year, and average humidity of 60%. This page covers 45 years of historical climate data (1981–2025) sourced from NASA POWER — including monthly temperatures, rainfall, humidity, and wind speed with interactive charts and year-by-year records.

☀️

Quick Climate Facts

(1981 - 2025)

Hottest Month

🔥

May

Avg:32.7°C
Min:23.0°C
Max: 43.4°C

Coldest Month

❄️

January

Avg:16.3°C
Min:5.8°C
Max: 28.1°C

Wettest Month

💧

July

267 mm

Driest Month

🏜️

December

4 mm

Most Humid

💨

September

84%

Least Humid

🌬️

March

32%

Highest Ever

🌡️

46.4°C

June 1998

Lowest Ever

🧊

1.6°C

January 2013

🌡️Temperature Patterns

Monthly averages · 1981–2025 climate normals · °C

🌧️Rainfall Distribution

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

📖Katihar Monthly Temperature Guide

The temperature chart above displays the average monthly temperatures for Katihar based on 45 years of climate data. May is typically the hottest month with average temperatures reaching 32.7°C, while January is the coolest month with an average of 16.3°C. These temperature patterns are crucial for agricultural planning, tourism activities, and understanding seasonal variations in Bihar. The temperature range between maximum and minimum values helps identify the best months for outdoor activities and provides insights into the region's climate classification.

🌬️Wind Speed Patterns

Monthly wind speed · 1981–2025 · m/s

💧Humidity Patterns

Avg relative humidity · 1981–2025 · %

💧Monsoon & Rainfall Patterns in Katihar

In Katihar, July is the wettest month with an average of 259mm of rainfall, while December is the driest with just 4mm. This seasonal pattern is driven by the Indian monsoon and directly affects agriculture and water availability in Bihar. Humidity peaks in September at 84%, typically coinciding with the monsoon season.

Monthly Climate Data

View:
Month🌤️HighLowAvgHumid %Rain (mm)Wind (m/s)
Jan🌤️28.1°C5.8°C16.3°C51%51.6
Feb☀️33.3°C8.2°C20.3°C41%101.9
Mar🌞39.4°C12.9°C26.1°C32%152.1
Apr🔥42.7°C18.7°C31.0°C34%392.2
May☔43.4°C23.0°C32.7°C48%992.3
Jun🌧️42.0°C25.8°C32.3°C63%1652.7
Jul🌧️36.3°C25.3°C29.7°C81%2592.5
Aug🌧️34.8°C24.8°C29.0°C84%2012.2
Sep🌧️34.0°C22.9°C28.0°C84%1881.9
Oct☔32.9°C16.8°C25.7°C76%711.4
Nov☀️30.6°C11.6°C21.4°C67%51.2
Dec🌤️27.3°C7.1°C17.2°C60%41.3

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

📊 About Monthly Averages

This view shows climate patterns averaged across all 45 years of data (1981-2025). Each data point represents the typical weather for that month, helping you understand seasonal patterns and plan visits to Katihar.

🌍 Climate Zone

Avg Annual Temperature:25.8°C
Avg Annual Rainfall:1081 mm
Data Period:1981 - 2025

🎈Explore Weather in Other Bihar Districts

View historical climate data for other districts in Bihar. Compare temperature patterns, rainfall trends, and weather statistics across the region.

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❓Frequently Asked Questions

The average annual temperature in Katihar, Bihar is 25.8°C based on 45 years of historical climate data from 1981 to 2025. The hottest month is typically May with an average of 32.7°C, while the coolest month is January with an average of 16.3°C.
July is typically the wettest month in Katihar with an average rainfall of 259mm. This is part of the monsoon season pattern in Bihar. The driest month is December with only 4mm of rainfall on average.
December is the driest month in Katihar, receiving only 4mm of rainfall on average. This is significantly lower than the wettest month (July), which receives 259mm. These dry periods are important for planning irrigation and water resource management in Bihar.
The highest recorded temperature in Katihar was 46.4°C in June 1998. This extreme temperature event is part of the historical climate record spanning from 1981 to 2025 and helps us understand the range of weather conditions that can occur in Bihar.
The lowest recorded temperature in Katihar was 1.6°C in January 2013. This cold temperature extreme, combined with the highest recorded temperature, shows the full temperature range experienced in the district over the past 45 years.
September has the highest humidity in Katihar, with an average relative humidity of 84%. This often coincides with the monsoon season when moisture levels are at their peak. High humidity affects how temperature is perceived and can impact agriculture, health, and daily comfort in Bihar.
March has the lowest humidity in Katihar, with an average relative humidity of 32%. These drier months typically occur outside the monsoon season and can be more comfortable for certain outdoor activities and agricultural operations.
All weather and climate data for Katihar is sourced from NASA POWER (Prediction of Worldwide Energy Resources), which provides reliable meteorological data from NASA research. The data is based on the MERRA-2 Reanalysis with a spatial resolution of 0.5° x 0.625° and covers the period from 1981 to 2025. This ensures high-quality, scientifically validated climate information for research, planning, and decision-making purposes.
This comprehensive weather history can help farmers in Katihar make informed decisions about crop selection, planting schedules, and irrigation planning. The monthly rainfall patterns show when water availability is highest (during July), while temperature trends help determine suitable growing seasons for different crops. The 45-year dataset also helps identify long-term climate shifts that may require adaptation in farming practices. Consider factors like average humidity, wind speed, and temperature ranges when planning agricultural activities.
Based on the climate data, the most pleasant months to visit Katihar are typically those with moderate temperatures and lower rainfall. January through May offer varying experiences. For comfortable weather, consider visiting during months with temperatures around 25.8°C and lower humidity levels (March). Avoid the peak monsoon months if you prefer dry weather, particularly July which receives the most rainfall. However, the monsoon season can be beautiful for those who enjoy lush green landscapes and don't mind occasional rain.

📚 Data Source

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

Parameters included:
  • Temperature (Min, Max, Average)
  • Precipitation (Rainfall)
  • Relative Humidity
  • Wind Speed
Data specifications:
  • Temporal Resolution: Monthly
  • Spatial Resolution: 0.5° x 0.625°
  • Source: MERRA-2 Reanalysis
  • Coverage: 1981-2025

Historical weather data for Katihar, Bihar • Data: NASA POWER • 1981-2025