MONTHLY WEATHER DATA AND OBS - LAVALE MD JULY 2013 OBSERVER SCOTT LOHR DATA COMPILED AND PUBLISHED BY NATE MULLINS Special Observations: F=fog, T=thunder, H=hail, S=sleet, G=glaze, DW=damaging winds Observation time for this station is midnight. Temperature, °F Precipitation, In. Liquid Solid 7am DAY 24-hour Rain Snow/ Snow Special WEATHER Date Max Min Equiv Ice Depth Obs. SUMMARY 1 84 68 .12 2 83 68 .10 F 3 86 68 .42 F,T 4 86 68 T 5 88 69 .31 T 6 90 71 .07 T 7 85 66 .69 T 8 86 65 T 9 86 69 T 10 86 69 .22 11 80 69 .09 12 74 65 .17 13 81 65 T 14 90 67 15 92 68 16 93 69 17 94 73 18 95 73 19 94 72 20 86 69 .03 21 81 67 T 22 87 69 .23 23 86 69 .18 F,T 24 77 65 25 74 55 26 81 53 27 72 60 .02 28 83 64 29 76 56 30 78 55 31 77 56 .03 AVG/SUM 84.2 65.8 2.68 0.0 - EXT 95 53 0.69 - - Date 18 26 7 - - *=Also occurred on earlier dates Miscellaneous Stats Mean Monthly Temperature: 75.0°F (+2.2°F) Year precipitation to date: 18.81" (-5.78") Month precipitation departure: -0.96" Season snowfall to date: 0.0" Number of days with: Fog 3 Thunder 6 ADDITIONAL NOTES/RECORDS 7: Daily record rainfall 0.69". Old record 0.61" in 2005. 17: Record high min 73 F. Old record 70 in 1995. MONTHLY SUMMARY For the 4th consecutive July, temperatures were above normal. It was quite hot and humid, with consistently above normal minimum temperatures, averaging in the upper 60s, until the final week when cooler and notably less humid air finally moved into the region. There was a lack of extremes in either direction, and we did not experience the intensity of the July heat waves of the previous three years. The most pronounced heat episode was during the middle of the month, with 6 of the 7 90+ degree readings occurring consecutively from the 14th-19th. Lows were in the upper 60s to low 70s, though only one of these mild lows set a record. 6 of the last 8 days had highs in the 70s, with 5 lows in the 50s, a pleasant change from the heat and humidity the balance of the month. Despite the lack of any heavy precipitation events (though a modest rainfall record was set on the 7th), the stormy pattern of the first 12 days, 9 of which saw measurable rainfall, brought over 2 inches of total rain. Had this pattern continued at a similar pace, we would have had about 4.5 inches of rainfall, above average for the second consecutive month. Instead, the weather pattern turned bone dry, with a mere .49" falling after the 12th. Large storms repeatedly evaporated as they approached and on several occasions dumped large amounts of rain within 10 miles of this location. The most puzzling aspect of this dry pattern was the flow of storms frequently from the south or southwest, which often favors heavy rainfall on the lee side of the Allegheny Front. Instead, the LaVale area appeared to be in the rain-shadow of the mountains once again.