donsutherland1 Posted April 8, 2012 Author Share Posted April 8, 2012 Given the date, latest model guidance, and monthly analogs, I believe New York City's last freeze has already occurred. The last freeze was March 27, 2012 when the temperature fell to 30°. Should such an outcome occur, 2012 will mark the 5th consecutive year in which the last freeze occurred prior to April and 7th of the last 8 for which there was no April freeze. The following are the dates for New York City's last freeze since 2000: 2000: April 9 2001: March 28 2002: April 7 2003: April 8 2004: April 6 2005: March 16 2006: March 22 2007: April 9 2008: March 30 2009: March 24 2010: March 27 2011: March 29 The last time New York City saw a freeze occur on April 10 or later was April 10, 1997 when the temperature fell to 28°. Link to comment Share on other sites More sharing options...
easternsnowman Posted April 9, 2012 Share Posted April 9, 2012 It seems like NYC,philly and dc all are having a rough time with april freezes but the cooler burbs seem not to be affected as much. Nighttime lows are wamer especially in philly and dc. It looks like what Don said that NYC is only .5 degrees warmer in april. Link to comment Share on other sites More sharing options...
easternsnowman Posted April 9, 2012 Share Posted April 9, 2012 It seems like NYC,philly and dc all are having a rough time with april freezes but the cooler burbs seem not to be affected as much. Nighttime lows are wamer especially in philly and dc. It looks like what Don said that NYC is only .5 degrees warmer in april. Link to comment Share on other sites More sharing options...
Snow_Miser Posted April 9, 2012 Share Posted April 9, 2012 It seems like NYC,philly and dc all are having a rough time with april freezes but the cooler burbs seem not to be affected as much. Nighttime lows are wamer especially in philly and dc. It looks like what Don said that NYC is only .5 degrees warmer in april. I hit freezing or just below freezing where I am in C NJ a few times last week. Link to comment Share on other sites More sharing options...
Nikolai Posted April 9, 2012 Share Posted April 9, 2012 I think it's becoming apparent that NYC's warming is due to an overall shift and not just the UHI. Snowfall is up because we're getting more precip, but as warming progresses there could/should be a sharp decline after a certain point--that seems to be what's happened further south, first in Richmond and increasingly in DC. That doesn't preclude and in fact enhances the possibility of blockbuster seasons when it's actually cold, but the overall milder regime would mean that snowfall is increasingly sporadic/received in large quantities. This is most evident when you look at the months bordering winter (November, March, and April), which have seen significant declines in snowfall. Link to comment Share on other sites More sharing options...
donsutherland1 Posted April 9, 2012 Author Share Posted April 9, 2012 It seems like NYC,philly and dc all are having a rough time with april freezes but the cooler burbs seem not to be affected as much. Nighttime lows are wamer especially in philly and dc. It looks like what Don said that NYC is only .5 degrees warmer in april. Correct. Where radiational cooling can take place, one can still see frequent freezes in April. However, even there, the frequency of freezes has diminished somewhat. If one is forecasting for the City, one needs to take into consideration the probability of freezes when looking at extended range modeling and make the necessary adjustments. Freezes can still occur in April. One just has to be careful when looking at the data: marginal freeze forecasts in the extended range have a low probability of verifying. One should look for continuity, trends in the forecasts (toward colder, if possible), and forecast output several degrees below freezing if one expects an extended range freeze forecast to verify. Link to comment Share on other sites More sharing options...
uncle W Posted April 16, 2012 Share Posted April 16, 2012 the lowest temperature this month is 38 making it one of the highest April minimums on record... April's warmest monthly min... 42 in 1878 40 in 2010 38 in 2012 37 in 2005 37 in 1951 37 in 1910 37 in 1902 36 in 1991 36 in 1941 36 in 1901 Link to comment Share on other sites More sharing options...
Isotherm Posted April 16, 2012 Share Posted April 16, 2012 the lowest temperature this month is 38 making it one of the highest April minimums on record... April's warmest monthly min... 42 in 1878 40 in 2010 38 in 2012 37 in 2005 37 in 1951 37 in 1910 37 in 1902 36 in 1991 36 in 1941 36 in 1901 The bugs have noticed -- I can't remember ever seeing this many insects in mid April. Nats, mosquitos, wasps, flies, stink bugs, you name it - they're out. Maybe we can get a colder low early next week. Link to comment Share on other sites More sharing options...
uncle W Posted April 16, 2012 Share Posted April 16, 2012 The bugs have noticed -- I can't remember ever seeing this many insects in mid April. Nats, mosquitos, wasps, flies, stink bugs, you name it - they're out. Maybe we can get a colder low early next week. Florida had less bugs...before I went there the forecast was for temps lower than that...I was surprised to see only low 40's for mins...I think temps in the 30's for Central park has ended... Link to comment Share on other sites More sharing options...
stormwarn Posted April 27, 2012 Share Posted April 27, 2012 Florida had less bugs...before I went there the forecast was for temps lower than that...I was surprised to see only low 40's for mins...I think temps in the 30's for Central park has ended... They should see 30s tonight. A freeze watch has been issued for eastern Bergen County. A freeze warning for the outlying areas. Link to comment Share on other sites More sharing options...
uncle W Posted April 27, 2012 Share Posted April 27, 2012 todays record low is 36 set in 1932...it might be 40 or lower by midnight...Tomorrows record low is 31 so we have no shot of breaking any records...It was 37 on this date in 1967 with morning rain mixed with snow.. Link to comment Share on other sites More sharing options...
nzucker Posted April 28, 2012 Share Posted April 28, 2012 Florida had less bugs...before I went there the forecast was for temps lower than that...I was surprised to see only low 40's for mins...I think temps in the 30's for Central park has ended... You spoke too soon...Central Park made it down to 38F for the minimum early this morning. Link to comment Share on other sites More sharing options...
uncle W Posted April 28, 2012 Share Posted April 28, 2012 You spoke too soon...Central Park made it down to 38F for the minimum early this morning. at least it wasn't the coldest temperature of the month... 38 is pretty cold for this time of year in the Park...I think we see one more round of cold in May before we say good bye to frost or freezes in the country...I'll guess the Park has a low temp of 43 and the colder spots get down to 32 or lower before the Summer arrives in June... Link to comment Share on other sites More sharing options...
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