Main page http://i4weather.net CLIMATOLOGCAL DATA: HAGERSTOWN MD LAT:39.38.31 LONG:77.42.06 ELEV:519 FT. Station: Hagerstown 1E Md (Print Landscape) Observer: Gregory L Keefer Observation time: Midnight MONTH: JULY YEAR: 2011 * Record Set or Tied EVENTS F=Fog T=Thunder TEMPERATURE F. DEGREE DAYS PRECIPITATION WIND(MPH) SKY H=Hail S=Sleet 12am (Base 65) Amt. Snow On Average G=Glaze(Frz Rain) Day MAX MIN Read HDD CDD Liq. Ice Gnd. Dir Speed Gust Cover %Sun DW=Damaging Wind 1 88 56 66 0 7 0 0 0 NW 4 16nw S 100 2 91 57 72 0 9 .05 0 0 S 4 18s PC 75 T 3 92 71 72 0 16 .73 0 0 S 5 21w PC 55 T 4 86 67 69 0 12 .02 0 0 S 3 15nw C 20 T 5 89 66 76 0 12 0 0 0 S 4 21w PC 70 6 92 69 77 0 15 0 0 0 S 4 15s PC 70 7 93 71 71 0 17 .35 0 0 S 5 39w PC 75 T 8 81 69 71 0 10 .40 0 0 N 5 21n C 20 F,T 9 89 66 71 0 12 0 0 0 E 4 19ne S 95 F 10 91 63 77 0 12 0 0 0 S 4 19s S 95 11 95 70 76 0 17 .29 0 0 S 6 28s PC 75 T 12 92 74 81 0 17 0 0 0 W 6 23nw PC 70 13 88 70 72 0 14 .04 0 0 WNW 7 24nw PC 50 T 14 85 62 68 0 8 0 0 0 E 6 19e S 90 15 83 63 68 0 8 0 0 0 S 6 21s PC 70 16 86 58 72 0 7 0 0 0 S 5 21s S 95 17 91 64 75 0 12 0 0 0 S 4 16s S 100 18 94 70 80 0 17 0 0 0 S 6 21s PC 70 19 93 74 74 0 18 .70 0 0 S 6 25e PC 65 T 20 94 72 82 0 18 0 0 0 S 4 15s S 90 F 21 99 76 88 0 23 0 0 0 S 7 22s S 100 22 *102 75 79 0 23 .44 0 0 S 7 59w PC 75 T,DW 23 97 74 83 0 20 0 0 0 S 4 19s PC 60 24 92 78 80 0 20 0 0 0 S 4 20s PC 40 25 88 73 73 0 15 .55 0 0 W 4 20s PC 50 26 95 67 80 0 16 0 0 0 S 6 27w S 90 27 91 68 71 0 14 0 0 0 WNW 5 18nw S 90 28 90 65 75 0 13 .02 0 0 S 3 14n PC 25 29 *100 72 77 0 21 .09 0 0 WSW 8 36nw S 80 F,T 30 94 73 73 0 18 0 0 0 NW 6 19nw S 90 31 94 63 76 0 14 0 0 0 NW 5 18nw S 95 ---------------------------------------------------------------------------------- 2835 2116 0 455 3.68 0 0 S 5.1 59w 72.4% ---------------------------------------------------------------------------------- MONTHLY STATS JULY 2011 TEMPERATURE---------------------------------------------------------- AVG TEMP 79.9 Normal 75.3 Dep +4.6 AVG MAX 91.5 Normal 87.7 Dep +3.8 AVG MIN 68.3 Normal 63.0 Dep +4.9 MAXIMUM 102 on 22nd Lowest Max 81 on 8th MINIMUM 56 on 1st Highest Min 78 on 21st NUMBER OF DAYS Max 90 or Higher 21 Max 32 or Lower 0 Min 32 or Lower 0 Min 0 or Lower 0 PRECIPITATION-------------------------------------------------------- MONTH TOTAL 3.68 Normal 3.51 Dep +0.17 YEAR TO DATE 27.38 Normal 22.25 Dep +2.62 NUMBER OF DAYS .01" or more 12 .10" or more 7 1.00" or more 0 LARGEST DAILY AMOUNT 0.73 on 3rd Largest 24 Hr Amount 0.73 on 3rd SNOWFALL------------------------------------------------------------- MONTH TOTAL Normal Dep SEASON TOTAL Normal Dep NUMBER OF DAYS 0.1" or more 1.0" or more Snow Cover 1" or more MAXIMUM DAILY SNOWFALL MAX 24 Hr Snowfall Storm Max OTHER---------------------------------------------------------------- NUMBER OF DAYS Fog 4 Thunder 10 Hail 0 Sleet 0 Glaze 0 Damaging Wind 1 Cloudy 2 Partly Cloudy 16 Sunny 13 Sunshine% 72.4% AVERAGE WIND SOUTH @ 5.1 mph PEAK GUST 59w on 22nd MAX BAROMETER 30.18 on 17th MIN BAROMETER 29.67 on 26th TOTAL DEGREE DAYS HEATING 0 Normal 0 / COOLING 455 Normal 306 JULY 2011 WEATHER REMARKS HAGERSTOWN 1E MARYLAND DAY 1st: Sunny high 88 F. Low humidity. THUNDERSTORMS 2nd: Partly cloudy hot high 91 F. Thundershower this evening between 7-8pm .05" fell. 3rd: Lots of thunder and lightning overnight between midnight and 5am as a series of thunderstorms moved through the area. Rainfall was .61" here but storms were a lot heavier to east and south. Thunderstorm this afternoon 3:30-4pm with .12" of rain and wind gust to 21 mph. Hazy hot and humid today high 92 F. 4th: Cloudy warm and humid high 86 F. Thunderstorms nearby this evening between 7:30-9pm but only .02" rain fell. 5th: Partly cloudy hot and humid high 89 F. 6th: Partly cloudy hot and humid high 92 F. 7th: Hot and humid today high 93 F. Thunderstorm around 7pm passed just south of here only .02" of rain fell here. Thunderstorms with frequent lighning late this evening 11pm till after midnight .35" total today. Wind gusts from storms this evening to 39 mph. 8th: Thunderstorms began before midnight and continued till around 2am with frequent lightning and brief moderate rain. More thundestoms and showers this afternoon between 2pm -5pm. Total raintoday .40". Mostly cloudy warm hazy and humid today high 81 F. 9th: Dense fog at sunrise. Sunny and hot today high 89 F. 10th: Sunny hot high 91 F. 11th: Hazy Hot and Humid high 95 F. Heat index averaging around 103 during the afternoon peaking at 106. Thunderstorm formed overhead between 6-7pm dropped .29" of rain. 12th: Partly cloudy and hot high 92 F. Not as humid with heat indices averaging in mid 90's peaking at 98. Also nice breeze from west. 13th: Partly cloudy high 88 F. Thundershower around 2pm with only .04" of rain. 14th: Mostly sunny high 85 F. very nice with low humidity. 15th: Partly cloudy nice high 83 F. 16th: Sunny high 86 F. HEAT WAVE ~~~~~HOT HUMID 17th: Sunny hot high 91 F. 18th: Partly cloudy hot and a bit more humid high 94 F. 19th: Partly cloudy hot and humid high 93 F. Heat index averaging in upper 90's peaking at 103 this afternoon. Thunderstorm between 5-6:30pm with a nice heavy downpours and some sharp lightning. Storm became more intense as it moved to south. 20th: Some fog at sunrise. Hot and humid today high 94 F. Heat index averaging around 103 peaking at 105. Dew points were in the mis 70's. 21st: Very hot and humid high 99 F. Not a record which was 102 in 1926. Heat index averaging around 105 this afternoon peaking at 109. *EXTREME HEAT AND HUMIDITY - *RECORD 102 F TIED - SEVERE THUNDERSTORM 22nd: Hot overnight. RARE Low of 80 F. this morning. One of the warmest lows ever recorded was set just last July 24th with a low of 81 F. Thunderstorms will erase this reading during the afternoon as temps fell into 70's *High of 102 Tied the Record for date set in 1926 . Heat index before storms hit were averaging around 116 and officially peaked at 121. Have not seen a reading like that since the 1980's. Severe thunderstorm between 2:30 -3:30pm dropped temps rapidly into 70's produced damaging winds up to 59 mph with power outages and trees down. A huge light tower was blown over at the local Hagerstown Suns Municipal Stadium baseball field. Also frequent sharp lighning and brief heavy downpours .44" fell. If storms did not form the air temperature probably would have peaked at around 105. 23rd: Partly cloudy hot and humid high 97 F. Heat index averaging around 105 peaking at 112. Clouds helped keep the temperature from hitting 100. 24th: Partly cloudy hazy not as hot but still humid high 92 F. Heat index averaging around 99 peaking at 103. 25th: Partly cloudy not as hot high 88 F. Quick downpour this evening around 8:30pm dropped .55" of rain. 26th: Sunny and hot high of 95 F. Much lower humidity today. 27th: Sunny today high 91 F. Some clouds moved in late this afternoon. 28th: Mostly cloudy to partly cloudy today high 90 F. A few light showers this evening between 9pm - 10:30pm .02". *HIGH OF 100 F. TIED RECORD SET 1930 29th: Dense fog overnight and this morning. Became sunny and very hot today high of *100 F. that ties the record for this date set in 1930. Dissipating line of thunderstorms between 7-8pm dropped .09" of rain, strong winds gusting to 36 mph and nice drop in temperature into 70's. 30th: Sunny & hot high 94 F. Much less humid today. 31st: Sunny and hot high 94 F. Low humidity again. July 2011 was the second Hottest on record with an average temperature of 79.9 F. The Hottest July ever was in 2010 and 1999 with and average of 80.0 JULY 2011