Hot- or warm-summer Mediterranean
‘Tavera’ bush beans are associated with a temperate Mediterranean climate, found in places like the climate’s namesake Mediterranean region and coastal California. Compared to Mediterranean summers, Las Vegas-area summers are off the charts in terms of heat. However, there are many overlapping climate patterns as winter turns to spring, which helps to explain why spring is a good time to grow ‘Tavera’ bush beans in Southern Nevada.
Here are some hot- and warm-summer Mediterranean climate factors to bear in mind, and how they compare to our local climate:
*Please note –
Bold = Regional climate info associated with ‘Tavera’ bush bean
Italics = Las Vegas climate info
The coldest month averages above 32 F.
This is also the case in the Las Vegas area.
At least four months average above 50 F.
This is certainly true in the Las Vegas area, where average monthly temperatures are above 50 F ten out of twelve months of the year .
All months’ average temperatures may be below 71.6 F, or one or more months may have average temperatures above 71.6 F.
There is some overlap here, with Las Vegas being significantly warmer overall. Average monthly temperatures are above 71.6 F for five months of the year in the Las Vegas area.
The driest month of summer receives less than 1.2 inches of precipitation.
Yes, same here!
Mediterranean climate areas receive midwinter rain and are dry in the hottest months. This coincides with the movement of high pressure belts away from these areas in winter (moving toward the equator) and back toward them in summer. There is at least three times as much precipitation in the wettest month of winter as in the driest month of summer.
The Las Vegas area is different in this respect. There is, on average, less than twice as much precipitation in the wettest month of winter as in the driest months of summer (2). Late spring in Las Vegas (June) meets the requirement above, being generally the driest time of year, but this Mediterranean-like drying trend is disrupted with the arrival of summer and the monsoon influence.
The pairing of warming weather and decreasing moisture in Mediterranean regions supports the health of bean plants. This pattern might help us understand ‘Tavera’ bean plants’ susceptibility to disease in warm, moist conditions. These conditions are different from Mediterranean norms.
1 “Tavera” article, Wikipedia. https://en.wikipedia.org/wiki/Tavera
2 “Monthly Temperature and Precipitation Normals for Las Vegas, NV.” Las Vegas Online Entertainment Guide. http://www.lvol.com/lvoleg/hist/weather.html
3 “Köppen climate classification” article, Wikipedia.
4 “Las Vegas” article, Wikipedia.
5 “Average Annual Sunshine in American Cities.” Current Results: Weather and Science Facts website.
6 “Patterns of Climate.” Weather & Climate website.
7 “Climate: Nevada.” Climate-Data.org.
8 “Köppen Climates and Characteristics.” Marcia’s Science Teaching Ideas website. http://mjksciteachingideas.com/
9 “Nevada” article, Wikipedia.