Line Graphs of Long-term Averages & Recent data
Daily Climate Graphs: long-term averages of daily
temperature, precipitation, snowfall, and more for 15
cities around Washington from CDC.
precipitation data compared with compared to normal
over the last 30, 90, or 365 days at 4 Washington locations
Snow: snow water equivalent, temperature, precipitation
at 60 locations in the Cascades and Olympic mountains.
Mountain Snow Depth Plotting: create plots of seasonal and
monthly snow depth for 11 sites in WA and OR and have the option to
constrain the data by warm, cold, or neutral ENSO years.
Create Custom NW Plots: interactively plot daily data
from the last 10 years of temperature, precipitation, and
much more for 22 Washington locations from
Ranking and trends in statewide average temperature and
precipitation from NCEI.
N.W. Temperature, Precipitation, and SWE Trend Analysis:
use the Google Maps interface to plot stations represented by circles, which
are scaled and color coded based on trend. Click on the station or circle
to view the corresponding graph.
National Diurnal Climatology: monthly graphs of hourly average temp,
precip, dewpoint, wind, and sky cover.
WRCC Climate Division Plotting: Create time series plots of monthly precipitation and temperature by
CDC U.S. Climatologies: Create time series plots of daily, weekly, and monthly temperature and precipitation from
1950 - 1999 for various stations around Washington.
Precipitation Rankings: Rank annual, water year, and seasonal precipitation
totals for various WA cities.
Monthly Time Series: Plot monthly temperature and precipitation time series for WA State or the
counties/climate divisions within using PRISM data on this WestMap tool.
WestWide Drought Tracker: A variation on the link above, this utility allows the user to examine monthly time series of
temperature, precipitation, or various drought indices for a specific latitude and longitude nationwide using PRISM data.
Freezing Level Tracker: This tool allows the user to plot estimated monthly time series of the height of the freezing level and
the percentage of precipitation that fell as snow for any location across the US based on the NCEP/NCAR Global
Reanalysis (since 1948).
Color Maps of Climate Data (usually whole US)
PRISM Group: Maps of monthly, seasonal temp, precip, snow and more.
Includes past, present, and normals maps, from OCS.
Climate Maps of the U.S.: Seasonal and annual maps
of temp, precip, sky cover, frost, and more from NCEI.
Climate Anomalies: monthly, seasonal, and annual maps
of temp. and precip. from NCDC.
US Climate Division
Mapping: Map various monthly temp. and precip. statistics by climate
division, from ESRL.
Anomaly Maps & Tables: of temp, precip, and extremes
for various periods over the last three years from WRCC.
U.S. Freeze/Frost Maps: Frost/Freeze climatology maps from MRCC.
U.S. Drought Monitor: maps related to drought from the NDMC.
Glacier Atlas of Mt. Rainier: Interactive atlas with information on glaciers,
temp, and precip.
Glaciers of the American West: Information on glaciers around the western U.S. Includes data, maps, and pictures.
PSD Interactive Plotting and Analysis Pages: Plot a variety of atmospheric variables include temperature, precipitation,
sea-level pressure, sea-surface temperatures, and more. Plots can be generated for determining
correlations with ENSO, for weather analysis, and climate anomalies on global and regional scales.
MODIS Cloud Fraction: Using MODIS satellite observatioins, generate Washington maps of monthly cloud fraction.
Current Western Snowpack: View the current snow water equivalent percent of normal map for the western United States from WRCC.
Map: interactively plot weather stations to search for weather data
around Washington and obtain instructions on retrieving the
data, from OWSC.
NCEI Climate Data Access
Tools: obtain archived hourly, daily, and monthly weather observations for all NOAA and NWS related weather stations in the U.S.
Summaries: tabulations of daily and monthly climate
averages and data. Includes temp, precip, snow, and other
stats for 200+ locations around Washington, from WRCC.
for Western States: compare various climate averages at
200+ locations around Washington from WRCC.
Anomaly Table: temp, precip, and extremes in the last
7, 14, and 28 days from WRCC.
NW Surface Observations: weather records for a
day of your choosing from UW.
U.S. Climate Normals:
Download 1971-2000 climate normals of temp, precip, freeze/frost, and more from
over 200+ locations in Washington, from NCEI.
Updated Climate Normals:
View the newly-released NCEI daily and monthly 1981-2010 climate normals of temperature,
precipitation, and heating/cooling degree days hosted by Golden Gate Weather Services.
Graphical WA Climate Normals:
an interactive map displaying 1981-2010 climate normal precipitation,
maximum temperature, and minimum temperature for COOP and ASOS sites
Summaries of recent data (daily for
last 2 months, monthly for the last 12 months) for several
cities in each of the 4 National Weather Service forecast
offices that cover the state: Seattle,
(Be sure to also view the NOWData tab).
WA Cloud Cover:
daily and monthly cloud cover data for 25 sites
National Diurnal Climatology: tables of hourly average temp,
precip, dewpoint, wind, and sky cover by month.
WRCC Monthly Summary Data Lister: Download monthly statistics, such as maximum, minimum, mean, and exceedences,
for over 200+ COOP stations around Washington. Available parameters include temperature, precipitation, snowfall,
heating and cooling degree days, evaporation, and wind movement.
Streamflow Station Map: Inventory station map of Washington streamflow
data available from Ecology and USGS.
Wind Rose Plots
Wind Roses for 5 Washington locations:
Guide to abbreviations, with links
A table of the web-based climate tools developed by AASC members is also available
(and searchable by region of interest).