阿肯色苔草属 (Arkansas Carex): 贴吧为植物学愣人了.

新修 2012天10月03日!


 

您好。我美国人。我学阿肯色苔草属(色苔草属:Carex)。This page is page four of several similar pages.

This fourth page talks about the climate of Fayetteville, Arkansas. I designed these pages for students in the US from China. China sends about 300,000 students a year to the US. Most earn advanced degrees. We send about 60,000 students to China each year. Most study the Chinese language. This part of my website provides my Chinese friends with information about living in the US, especially about Fayetteville, Arkansas.

This page tells about Fayetteville, Arkansas' weather. I plan to tell about unusual events like the tornado that went over Razorback Stadium on the University of Arkansas campus in spring of 1975 or the ice storm of 2009. In brief, the fall semester is hot to warm and the spring semester is cold to cool. More about this as I have time.

For now? First, how to convert centigrade to degrees F? The official was is a fairly simple formula. Here's my easy suggestion. You know 0 degrees C is 32 degrees F. Here's how I think of the temperatures. Degrees C are approximate.

0 degrees F = about -16 degrees C : very cold, wear your coat and bundle up.

10 degrees F = about -11 degrees C : quite cold, deal with it.

20 degrees F = about -6 degrees C : freezing cold, wear a light jacket at least.

30 degrees F = -0.9 degrees C : freezing, barely.

40 degrees F = about 4 degrees C : very cool and comfortable if you are dressed a little warm.

50 degrees F = about 9 degrees C : nice and cool.

60 degrees F = about 15 degrees C : comfortably cool.

70 degrees F = about 20 degrees C : inside temperature cool at 70.

80 degrees F = about 25 degrees C : getting warm

90 degrees F = about 31 degrees C : fairly hot

100 degrees F = about 36 degrees C : definitely hot

Temperatures by month. January is the coldest month. Snow is possible, infrequently heavy (as much as a meter on rare occasions, but not in most winters. Six inches (15 cm) of snow is a "good" snow. Some winters do not see a single snow storm with this depth, others may have several. Obviously temperatures can reach well below freezing and sometimes less than 0 degrees F. I use degrees F because that's what you will hear on the local news and radio. A normal January day might have a low temp of around 20 degrees F. February is usually, but not always, slightly warmer. In March, things warm up just a little. A few frost hardy flowers start to bloom, but only a few. The tree buds swell, but don't really open up much. In April, the world goes from gray to green. The last frost almost always occurs in April. The trees leaf out with very tiny leaves.

May brings the end to cold weather and the "spring" semester. In reality, you could call it the winter semester. By the time the weather gets really nice, the semester is over. Up to this point it usually rains enough that the plants have plenty of water and the tiny leaves go from small to full size. In June, the leaves harden up and the weather is almost warm enough for swimming. July and August are down right hot with high temps about 95 degrees or more on the hottest days. But September starts to bring some cooler weather. October usually brings the first frosts and the leaves sometimes turn brown or beautiful colors. The maple trees on campus often turn splendid reds, oranges, and yellows, often in the same leaf. November and December usually bring cooler weather, with an occasional cold snap, with some chance of frost on many days.