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Geological Sciences: Climate Data

Research guide for geology

How to retrieve monthly rainfall/climate data from NowData?

NOWData (NOAA Online Weather Data)

Notes: M stands for Missing. T stands for Trace. FAQs

Heating Degree Day (HDD): The number of heating degrees in a day is defined as the difference between 65°F and the mean temperature (average of the daily high and daily low).

Cooling Degree Day (CDD): The number of cooling degrees in a day is defined as the difference between the mean temperature (average of the daily high and daily low) and 65°F.

Growing Degree Days (GDD): Calculated by subtracting the plant's lower base or threshold temperature of 50°F from the average daily air temperature in °F.

How to use NOAA Online Weather Data (NOWData)?

Selected Data Tools

Data Tools: Find a Station (Retrieve weather records from observing stations by entering the desired location, data set, data range, and data category. Location can be specified as city, county, state, country, or ZIP code).

NCDC (The Image and Publications System (IPS) includes monthly publications for a variety of datasets along with Serial Publications and Other Documents (most of which are PDFs). To view PDF files, you must have Adobe Reader installed. All users may freely access publications online). (Current and past data sets)
e.g., > Los Angeles, CA > Historical Observations

NOAA OneStop (NOAA OneStop can be used to search for any NOAA data with a metadata record. It is an interoperable tool designed to explore data from across scientific disciplines, formats, time periods, and locations. OneStop’s wide range of filtering options can pinpoint specific collections or granules that may not be discoverable in other mediums).

Extreme Weather Records by State (What were the highest and lowest temperatures in your state, and when and where were they measured? This site shows records for every state in categories such as temperature, total amount of rain or snow in 24 hours, weight and diameter of hail-stones, and highest wind gusts).

State Cimate Extremes Committee (SCEC) (The State Climate Extremes Committee (SCEC) was created in 2006 in response to the need for proper and comprehensive evaluation of meteorological observations which may have tied or exceeded existing statewide all–time record values).

Weather Underground (Find historical weather by searching for a city, zip code, or airport code. Include a date for which you would like to see weather history. You can select a range of dates in the results on the next page).

Extreme Weather Watch (Information by State and City)

Climate data from NOAA (National Oceanic and Atmospheric Administration)

Precipitation (National Oceanic and Atmospheric Administration)

Other Resources

How to get climate data (e.g., temperature & precipitation) from NOAA database?

How to download historical climate data from NOAA?