The table presented here provides an interesting comparison of winds, rainfall, and dew points for the past 7 Junes for Ames. The first noticable value is the average 4 PM dew point of only 54 degrees with all other years in the upper 50s and 60s. Certainly not having much rain is involved in our low dew points due to decreased evaporation, but perhaps the most important factor is the lack of southerly winds shown by the very low value of v-component wind. The v wind is simply the component of the wind from the north or south. A larger value of v indicates a stronger southerly wind and thus greater moisture transport from the more humid air masses to our south. You can see the largest v values associated with very humid June months of 2005 and 2002.

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Tags:   june