The Indiana State Climate Office ( Iclimate ) is the state archive of official daily and hourly weather observations recorded throughout Indiana. Iclimate maintains an online archive of many recent daily and hourly observations from both manual and automated networks. Older observations are being converted to an online database as part of an ongoing national effort.

Iclimate was established in 1956 to document and study the climate of Indiana. Ever since, it has been catering to the needs of different users, namely individuals, businesses, and government agencies. Iclimate not only assists in providing climate observations and summaries but also interprets and applies this data to solve climate related problems at hand.

Primary users of Climate data belong to sectors such as agriculture, attorneys, construction, environmental monitoring, forensics, government insurance, news media, research, education and utilities.

30 minutes - Purdue Automated

PAAWS, 1999-Present Get Data

Air Temperature, Bare Soil Temperature, Vapor Pressure, Saturation Vapor Pressure, Grass Soil Temperature, Precipitation, Solar Radiation, Wind Direction, Wind Direction Sigma, Wind Gust, Wind Gust Time, Wind Speed, Wind Speed Sigma, Evapotranspiration

Hourly - Purdue Automated

PAAWS, 1999-Present Get Data

Air Temperature, Bare Soil Temperature, Vapor Pressure, Saturation Vapor Pressure, Grass Soil Temperature, Precipitation, Solar Radiation, Wind Direction, Wind Direction Sigma, Wind Gust, Wind Gust Time, Wind Speed, Wind Speed Sigma, Evapotranspiration

Daily - Purdue Automated

PAAWS, 1999-Present Get Data

Air Temperature, Min Air Temperature, Min Air Temperature Time, Max Air Temperature, Max Air Temperature Time, Precipitation, Solar Radiation, Wind Speed, Wind Speed Sigma, Wind Direction, Wind Direction Sigma, Wind Gust, Wind Gust Time, Bare Soil Temperature, Bare Soil Max Temperature, Grass Soil Temperature, Grass Soil Max Temperature, Bare Soil Min Temperature, Grass Soil Min Temperature, Evapotranspiration, and Summary

Normals - monthly & annual - Cooperative

COOP, 30 years Get Data

Minimum Temperature, Mean Temperature, Precipitation, CDD, HDD, Maximum Temperature, GDD, DD50, Heat Unit Base 50, Heat Unit Base 48, Heat Unit Base 41

Hourly - Airport

ASOS, 1941-Present Get Data

Wind Direction, Wind Speed, Cloud Base, Visibility, Air Temperature, Dewpoint, Sea Level Pressure, Sky Cover, Present Weather Observation, Relative Humidity, Wind Gust, Heat Index, Chill Index

Daily - Cooperative

COOP, 1901-Present Get Data

Air Temperature, Bare Soil Temperature, Vapor Pressure, Saturation Vapor Pressure, Grass Soil Temperature, Precipitation, Solar Radiation, Wind Direction, Wind Direction Sigma, Wind Gust, Wind Gust Time, Wind Speed, Wind Speed Sigma, Evapotranspiration, and Summary