Select a predefined city to automatically load. Or, choose another location using the map (double-click) or address bar.
Select the station closest to the location provided.
Click Update Climate Perspective.
Station Calculations
Station data is recorded for every day according to its observation time. An exception to this is the following: COOP Stations with observation times between 12:30a and 11:30a:
The minimum temperature used is from that day's observation
The maximum temperature and precipitation used is from the NEXT day's observation
Temperature values are computed and compared to the tenth degree in °C, then converted to °F. Precipitation is computed and compared to the hundredth of an inch.
Station Data
Station results are returned in °F for temperature, and inches for precipitation. Data percentage is the total number of daily observations that existed in the time period. Any codes that follow this percentage reflect:
Advanced Usage
The following additions to the URL string are advanced options. Please note that usage of these may result in a significant increase of page load time.
Station Calculations
See Local Station Perspective above.
Station Requirements
See Local Station Perspective above.
Advanced Usage
The following additions to the URL string are advanced options. Please note that usage of these may result in a significant increase of page load time.
Printing The Map: Use your computer's 'Print Screen' function to paste into an image editor or document editor of your choice.
Streaks and Threshold Perspectives https://sercc.oasis.unc.edu/ThresholdsDescription Threshold Perspectives: The number of days that meet a given threshold for a period are displayed. These values are also ranked versus the same station's history for each period. The difference in the period and historical averages for the threshold is also shown. Streak Perspectives: The number of consecutive days that meet a given threshold for a period are displayed. These values are also ranked versus the same station's history for each period. The difference in the period and historical averages for the threshold is also shown.
How to Use
Choose your date.
Select a predefined city to automatically load. Or, choose another location using the map (double-click) or address bar.
Select the station closest to the location provided.
Determine the variable to use.
Click Update Streaks and Thresholds Perspectives.
Station Calculations
Station data is recorded for every day according to its observation time. An exception to this is the following: COOP Stations with observation timesbetween 12:30a and 11:30a:
The minimum temperature used is from that day's observation
The maximum temperature and precipitation used is from the NEXT day's observation
Temperature thresholds are computed and compared to the thousandth of a degree °C, then converted to °F. Precipitation thresholds are computed and compared to the hundredth of an inch. As of May 13, 2015 the threshold 85F was added. This will not be available for dates before this time period. Station Requirements
20+ years of parameter data for each station
75% of each year's data for each period must exist for ranking
Advanced Usage
The following additions to the URL string are advanced options. Please note that usage of these may result in a significant increase of page load time.
Custom Thresholds:You can add your own custom thresholds. You must also specify the variable, as well as the units. Units must be one of the following: in for precipitation, F or C for temperature Thresholds must one of the following:
Change Log:
5/2021 - New 1991-2020 NCEI Normals Incorporated into CLIMPER.
7/9/2021 - Inserted hourly data from Mesonet API for ASOS stations in North Carolina.
12/13/2021 - Forecast Perspective Expanded to 3 day forecast from NDFD for Southeastern Region.
1/6/2022 - Incorporated Past 2 Month Period in drop down menu.
2/8/2022 - Forecast Perspective Expanded to 5 day forecast from mixed dataset of NDFD and NBM for Southeastern Region.
2/8/2022 - 5 day Forecast Perspective Expanded Tennessee and West Virginia.
10/2/2022 - Added new function to export the current map view to png.
12/6/2022 - Added new feature to switch regions on the current map view.
12/30/2022 - Added missing COOP stations for the whole conus (28 stations added).
12/31/2022 - Backfilled missing daily data for COOP stations of Southeastern region (30000+ rows of daily data inserted or updated).
1/11/2023 - Add new version of change log.
2/9/2023 - Add Water Year to Date Period to CLIMPER.
4/19/2023 - Updated the 'How to Use' instructions on the about page and added the mouse over popout for the 'Show Perspectives' button on the Map page.
6/18/2023 - Expand Forecast Perspective to the 1st order stations outside of Southeastern Region. Changelog Last updated: June 29 2023 16:19
