Skip Navigation Linkwww.weather.gov 
NOAA Logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
{OFFICETITLE}
Top left navbar Home Site Map National News Organization
  Nav bar end cap

Search Database

A variety of special data searches can be performed with this option. Large data files can be quickly scanned for extremes, averages, totals, or occurrences of various input criteria. Occurrences can be evaluated in terms of consecutive days, frequencies, or first and last events in a given time period. Date limits can also refine the search results.

First the Search Type is selected from the drop-down menu, then the weather parameter (Maximum Temp, Minimum Temp, etc.) is selected. Optionally, the Beginning Date and Ending Date can be changed to limit the months or years used in the search.

The number of records that will be displayed in the "Highest", "Lowest" and "Consecutive Days" search can be changed with the "Number of Records" slidebar.


Search Types

  1. Highest
  2. Lowest
  3. Consecutive Days
  4. Daily Frequencies
  5. Daily Averages
  6. First/Last Dates
  7. Monthly Frequencies
  8. Monthly Avgs/Totals
  9. Average

Highest

This search displays the highest single day values for the period set by the beginning and ending dates. Also, the highest average values for the entire period are displayed in a second column.

After selecting Highest and a station, select the climatological element type and the beginning and ending dates. The number of days shown in the results is set with the Show Top XX Results button.


Lowest

This search displays the lowest single day values for the period set by the beginning and ending dates. Also, the highest average values for the entire period are displayed in a second column

After selecting Lowest and a station, select the climatological element type and the beginning and ending dates. The number of days shown in the results is set with the Show Top XX Results button.


Consecutive Days

This search finds the longest periods where user designated limiting criteria were met on consecutive days. For example, the most days in a row without any precipitation, or the most days in in a row with minimum temperatures below zero.

After selecting Consecutive Days and the station, choose a climatological element type and the beginning and ending dates. Then select either the Greater or Less Than radio button and enter a number in the text input box. To search for precipitation values greater or less than a trace, enter a T in the text box.


Daily Frequencies

This search displays the number of days that an event occurred per calendar date, for all of the years selected in the search.

After selecting Daily Frequencies and the station, choose a climatological element type and the beginning and ending dates. Then select either the Greater or Less Than radio button and enter a number in the text input box. To search for precipitation values greater or less than a trace, enter a T in the text box. Column and row totals are included in the results output.

The number of days shown in the results is set with the Show Top XX Results button.


Daily Averages

This search displays the average by calendar day, calculated over the range of i years selected in the search limits.

After selecting Daily Averages and the station, choose a climatological element type and the beginning and ending dates. Column and row totals are included in the results output.


First/Last Dates

This search finds the earliest and latest dates that an event first occurred in a period, and the same for when it last occurred. Also, the most and least days between first and last events is determined. Averages for all three categories are calculated as well.

After selecting First/Last Dates and the station, choose a climatological element type and the beginning and ending dates. The dates can wrap around if you are interested in the Winter season. Next select either the Greater or Less Than radio button and enter a number in the text input box. To search for precipitation values greater or less than a trace, enter a T in the text box.


Monthly Frequencies

This search display the number of days that an event occurs in each month/year within the date limits set. The results are displayed in a table of months vs years. Column and row totals are included.

After selecting Monthly Frequencies and the station, choose a climatological element type and the beginning and ending dates. Next select either the Greater or Less Than radio button and enter a number in the text input box. To search for precipitation values greater or less than a trace, enter a T in the text box. Column and row totals are included.


Monthly Avgs/Totals

This seach displays the monthly averages and totals for the selected variable. The results are displayed in a table of months vs years. Column and row totals are included.

After selecting Monthly Avgs/Totals and the station, choose a climatological element type and the beginning and ending dates. Monthly and yearly averages for the date-range selected are included.


Averages

This search displays a single daily average for the selected variable over the date range selected. In the case of Precipitation, Snowfall, and Degree Days an average for the total period is calculated as well. It also includes a second value that excludes any years with missing data.

After selecting Averages and the station, choose a climatological element type and the beginning and ending dates.