snow is loy

loy = snow

Some things Google found for "loy":
Loy is an unusual to uncommon masculine first name. Loy is an uncommon last name, notably actress Myrna Loy. A loy is an Irish spade used for manual plowing (or ploughing). Loy is the name of places in Germany and in the US in Arkansas.

Word derivation for "snow" :
Hungarian = hó
Finnish = lumi
Samgur = loy

I decided to include several diphthongs in Samgur. I dropped the accent from the O in the Hungarian word, added it to the I in the Finnish word to get OI, then transliterated OI to OY.

rain is seshe

seshe = rain

Some things Google found for "seshe":
Seshe is a rare first name. Seshe is a rare last name. Diner Seshe Ghumer Deshe seems to be a Bengali song title. Similar Sesheshet was an ancient Egyptian Queen. Similar Seshego is a place in South Africa.

Word derivation for "rain" :
Hungarian = eső (which I transliterate to eshö)
Finnish = sade
Samgur = seshe

My previous Samgur word for rain was esse.

wind is súli

súli = wind
alternate spelling: suli

Some things Google found for "suli" and "súli":
Suli is an unusual last name. Suli is a unusual first name which can be feminine or masculine. SULI is an acronym for Science Undergraduate Laboratory Internship. In Hungarian suli (pronounced shuli) is student jargon for school. Súli-Dínu (aka Soulopoulon) is the name of a place in Greece. Suli is the name of places in the Philippines, Nigeria and China.

Word derivation for "wind" :
Hungarian = szél (which I transliterate to sél)
Finnish = tuuli (which I transliterate to túli)
Samgur = súli

ice is yäg

yäg = ice
alternate spelling: yaeg

Some things Google found for "yag":
Yag is an unusual last name. Yag is a rare first name. YAG is an acronym for yttrium aluminum garnet which is a synthetic material used in lasers. Yag is the name of a place in Russia.

Word derivation for "ice" :
Hungarian = jég (which I transliterate to yég)
Finnish = jää (which I transliterate to yää)
Samgur = yäg

The Hungarian and Finnish words are similar.