Image (click to enlarge): Puerto Rico 24-hour precipitation ending 8 am EDT, July 19, 2013, from National Weather ServiceMidnight Update: The final daily rainfall for San Juan is 9.23″, the second highest for any day on record.The year-to-date rainfall total… [more]

Image (click to enlarge): U.S. temperatures at 4 pm EDT, July 15, 2013, from UnisysRecord heat extended from northernmost Maine into eastern Canada on Monday, July 15: – The high temperature at Millinocket of 94° tied the record for the… [more]

Images (click to enlarge): Washington, DC regional radar, 12:49 am EDT, July 12, 2013, from The Weather Channel; 24-hour precipitation ending 8 am EDT, July 13, 2013, for Washington region, from National Weather Service2 PM EDT Update: The 3.88″ a… [more]

Image (click to enlarge): U.S. daily high temperatures, June 28, 2013, from Unisys. Note the bright blue area of 120°+.July 1 Update: The 129° at the aptly-named Furnace Creek in Death Valley on June 30 was a new all-time June… [more]

Images (click to enlarge): June total rainfall to date for New York and southern New England from National Weather Service (NWS); 48-hour total precipitation forecast through Friday evening, June 28, from WPC/NWSJune 27 (Thursday), 10:30 PM Update: The 0.23″ so… [more]

9 PM CDT Update: The preliminary final high temperature at Goodland was 107°, smashing the old record by 7°. Other records were tied or broken in Arizona, New Mexico, Wyoming, Colorado, Nebraska, and Kansas. Location Record Previous Date AZ Winslow… [more]

June 8, 10 AM Update: Added Salisbury, Wilmington, Allentown, Islip, Massena, Boston, Providence. Updated totals through midnight.10 PM EDT Update: Added Richmond, New Bern, Hartford, Bridgeport, Worcester. Updated totals through 8 pm (10 pm for CT and MA).Original post:Heavy rainfall… [more]

Image (click to enlarge): U.S. daily high temperatures for May 14, 2013, from UnisysWhile Mid Atlantic residents were complaining about the unseasonable cold temperatures on Tuesday, heat records were being crushed in the Northern Plains and upper Midwest. As shown… [more]

One year after heat records smashed cold records by a ratio of over 35 to 1, preliminary data from the National Climatic Data Center (NCDC) show that new daily low temperature records in the U.S. outnumbered high temperature records by… [more]

* since 20015:30 PM Update: The preliminary high for the day was 79° at 3 pm EDT.Original Post:With a noon temperature of 70°, Washington is well on its way to the first 75° or higher temperature of the year by… [more]

March 2013 has closed out the record books with a monthly high temperature in Washington of 63°. This is the coldest high for March since the 58° in 1958. It’s only the second time Washington has failed to reach 65°… [more]

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Denizens of the DMV were complaining about the early-spring cold this March 21, but the chill was nowhere near the historical extremes for this date or any other date through the end of the month. Although the high for the… [more]

The climatological average for March snowfall in Washington is just 1.3″, so significant snowfalls in the first month of meteorological spring are rare. With the bust of the current “Snowquester”, it’s likely that 2013 will add to a string of… [more]

8 PM CST February 26 Update: Map updated with final totals.8 PM CST Update: The Amarillo snow total of 19″ is the third heaviest for any storm on record:19 inches of snow at NWS #Amarillo. 2nd most snow in a… [more]

The maximum intensity for the developing Midwest blizzard is nearly 2 days away, but a major forecast model is predicting mid-atmospheric pressures at least as low as any observed during February in the region since systematic upper-air observations began in… [more]

February 26, 9 AM CST Update: The Wichita daily record snowfall of 4.8″ yesterday, plus 2″ so far today, brings the monthly total to 21″, which breaks the record.February 25, 8 PM CST Update: The heaviest snow appears to be… [more]

8 PM CST Update: Unofficial reports of 12″ or more of snow in Kansas have been added below.Original post:The latest National Weather Service storm total report from Wichita, Kansas indicates that the 14.2″ so far is the second biggest snowstorm… [more]

As the massive snowfalls of the 2009-1010 season fade into the rear-view mirror, Washington DC is close to ending meteorological winter with a near-record low 3-year snow total. With the latest nor’easter bombing out well offshore, there is no Presidents’… [more]

Image (click to enlarge): Top 10 snowfall totals for southern New England, from National Weather ServiceFebruary 10 Update: The Providence total has been corrected to 16.6″, making this the 9th biggest snowstorm.Original Post:As the snow has wound down over New… [more]

The current blizzard developing from New York northward through southeast New England is being widely touted as a potential record-breaking event. Here are the top 10 daily snowfall amounts (inches), from NOAA/National Weather Service data, for the major climate reporting… [more]

The record-breaking mid-winter heat earlier this week has also been accompanied by record precipitation. In Madison, Wisconsin, the 1.84″ of rain on Tuesday was nearly double the previous daily record for January 29 of 0.98″ in 1869. It was also… [more]

Image (click to enlarge): U.S. high temperatures for January 28, 2013, from UnisysJanuary 29 Update: Added Kansas City, St. Joseph, and other Missouri records (see below).Original post:A new ice age in North America?Back in US. What happened to global warming?London,… [more]

January 23 Update: The final daily low was 32° at midnight. The hourly data table and climate summary have been updated.9 PM Update: The temperature reached 47° at 6 pm to exceed the earlier high. The low of 33° is… [more]

The Denver Broncos may have lost their coldest NFL playoff game yesterday (go Ravens!), but the real record-breaking temperatures were observed east of the Mississippi on January 12. At least 50 major National Weather Service locations in 14 states set… [more]